Identify the set of correct statements:
A. The flowers of Vallisneria are colourful and produce nectar
B. The flowers of waterlily are not pollinated by water.
C. In most of water-pollinated species, the pollen grains are protected from wetting.
D. Pollen grains of some hydrophytes are long and ribbon like.
E. In some hydrophytes, the pollen grains are carried passively inside water.
Choose the correct answer from the options given below:
a.
A, C, D and E only
b.
B, C, D and E only
c.
C, D and E only
Correct Answer
d.
A, B, C and D only
Step-by-Step AI Explanation
Verified Method
Vallisneria flowers are not colourful and do not produce nectar, so A is false. Waterlily is pollinated by insects, so B is true. In water pollination, pollen is protected from wetting, some hydrophytes have ribbon-like pollen, and in some species pollen is carried passively in water. Thus C, D and E are correct.
Q103mcq
Inhibition of Succinic dehydrogenase enzyme by malonate is a classical example of:
a.
Competitive inhibition
Correct Answer
b.
Enzyme activation
c.
Cofactor inhibition
d.
Feedback inhibition
Step-by-Step AI Explanation
Verified Method
Malonate is a structural analogue of succinate and competes with it for the active site of succinate dehydrogenase, so it shows competitive inhibition.
Q105mcq
Bulliform cells are responsible for
a.
Increased photosynthesis in monocots.
b.
Providing large spaces for storage of sugars.
c.
Inward curling of leaves in monocots.
Correct Answer
d.
Protecting the plant from salt stress.
Step-by-Step AI Explanation
Verified Method
Bulliform cells are large, thin-walled cells on the upper epidermis of monocot leaves. They help in leaf rolling/curling inward during water stress, reducing transpiration.
Q106mcq
Which of the following are required for the dark reaction of photosynthesis?
A. Light
B. Chlorophyll
C. CO2
D. ATP
E. NADPH
Choose the correct answer from the options given below:
a.
C, D and E only
Correct Answer
b.
D and E only
c.
A, B and C only
d.
B, C and D only
Step-by-Step AI Explanation
Verified Method
The dark reaction (Calvin cycle) requires CO2, ATP, and NADPH. Light and chlorophyll are required for the light reaction, not directly for the dark reaction.
Q107mcq
Formation of interfascicular cambium from fully developed parenchyma cells is an example for
a.
Dedifferentiation
Correct Answer
b.
Maturation
c.
Differentiation
d.
Redifferentiation
Step-by-Step AI Explanation
Verified Method
Dedifferentiation is the process by which mature, differentiated cells regain the capacity to divide and form meristematic tissue, as in interfascicular cambium formation.
Q107mcq
Formation of interfascicular cambium from fully developed parenchyma cells is an example of:
a.
Dedifferentiation
Correct Answer
b.
Maturation
c.
Differentiation
d.
Redifferentiation
Step-by-Step AI Explanation
Verified Method
Fully developed parenchyma cells regain the capacity to divide and become meristematic again, which is dedifferentiation.
Q109mcq
Tropical regions show greatest level of species richness because
A. Tropical latitudes have remained relatively undisturbed for millions of years, hence more time was available for species diversification.
B. Tropical environments are more seasonal.
C. More solar energy is available in tropics.
D. Constant environments promote niche specialization.
E. Tropical environments are constant and predictable.
Choose the correct answer from the options given below:
a.
A, B and E only
b.
A, B and D only
c.
A, C, D and E only
Correct Answer
d.
A and B only
Step-by-Step AI Explanation
Verified Method
Tropical biodiversity is high because tropical regions are old and relatively undisturbed, receive more solar energy, and have stable, predictable climates that promote niche specialization. Statement B is false because tropical environments are not more seasonal.
Q109mcq
Tropical regions show the greatest level of species richness because:
a.
Tropical latitudes have remained relatively undisturbed for millions of years, hence more time was available for species diversification.
b.
Tropical environments are more seasonal.
c.
More solar energy is available in tropics.
Correct Answer
NCERT states that tropical regions have high species richness due to long evolutionary time, more solar energy, and stable climates that promote specialization. Hence A, C, D and E are correct in the source set.
Q110mcq
Which one of the following is not a criterion for classification of fungi?
a.
Mode of spore formation
b.
Fruiting body
c.
Morphology of mycelium
d.
Mode of nutrition
Correct Answer
Step-by-Step AI Explanation
Verified Method
Fungal classification is based on morphology of mycelium, mode of spore formation, and fruiting bodies, not mode of nutrition.
Q111mcq
How many molecules of ATP and NADPH are required for every molecule of CO2 fixed in the Calvin cycle?
a.
3 molecules of ATP and 3 molecules of NADPH
b.
3 molecules of ATP and 2 molecules of NADPH
Correct Answer
c.
2 molecules of ATP and 3 molecules of NADPH
d.
2 molecules of ATP and 2 molecules of NADPH
Step-by-Step AI Explanation
Verified Method
For fixation of one CO2 in the Calvin cycle, 3 ATP and 2 NADPH are required.
🎉 10 Free Sample Solutions Completed
Unlock All 109 Questions & Solutions
Sign up free in seconds to unlock step-by-step AI answers for the remaining 99 questions.
These are regarded as major causes of biodiversity loss: A. Overexploitation B. Co-extinction C. Mutation D. Habitat loss and fragmentation E. Migration. Choose the correct option:
a.
A, B and E only
b.
A, B and D only
c.
A, C and D only
d.
A, B, C and D only
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List I with List II.
List I: A. Rhizopus, B. Ustilago, C. Puccinia, D. Agaricus
List II: I. Mushroom, II. Smut fungus, III. Bread mould, IV. Rust fungus
Choose the correct answer from the options given below:
a.
A-III, B-II, C-I, D-IV
b.
A-IV, B-III, C-II, D-I
c.
A-III, B-II, C-IV, D-I
d.
A-I, B-III, C-II, D-IV
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
In a plant, black seed colour (BB/Bb) is dominant over white seed colour (bb). In order to find out the genotype of the black seed plant, with which of the following genotype will you cross it?
a.
Bb
b.
BB/Bb
c.
BB
d.
bb
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List I with List II.
List I: A. Two or more alternative forms of a gene, B. Cross of F1 progeny with homozygous recessive parent, C. Cross of F1 progeny with any of the parents, D. Number of chromosome sets in plant
List II: I. Back cross, II. Ploidy, III. Allele, IV. Test cross
Choose the correct answer from the options given below:
a.
A-III, B-IV, C-I, D-II
b.
A-IV, B-III, C-II, D-I
c.
A-I, B-II, C-III, D-IV
d.
A-II, B-I, C-III, D-IV
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List I with List II.
List I: A. Clostridium butylicum, B. Saccharomyces cerevisiae, C. Trichoderma polysporum, D. Streptococcus sp.
List II: I. Ethanol, II. Streptokinase, III. Butyric acid, IV. Cyclosporin-A
Choose the correct answer from the options given below:
a.
A-III, B-I, C-IV, D-II
b.
A-IV, B-I, C-III, D-II
c.
A-III, B-I, C-II, D-IV
d.
A-II, B-IV, C-III, D-I
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List I with List II.
List I:
A. Clostridium butylicum
B. Saccharomyces cerevisiae
C. Trichoderma polysporum
D. Streptococcus sp.
List II:
I. Ethanol
II. Streptokinase
III. Butyric acid
IV. Cyclosporin-A
Choose the correct answer from the options given below:
a.
A-III, B-I, C-IV, D-II
b.
A-IV, B-I, C-III, D-II
c.
A-III, B-I, C-II, D-IV
d.
A-II, B-IV, C-III, D-I
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
What is the fate of a piece of DNA carrying only the gene of interest which is transferred into an alien organism?
A. The piece of DNA would be able to multiply itself independently in the progeny cells of the organism.
B. It may get integrated into the genome of the recipient.
C. It may multiply and be inherited along with the host DNA.
D. The alien piece of DNA is not an integrated part of chromosome.
E. It shows ability to replicate.
Choose the correct answer from the options given below:
a.
B and C only
b.
A and E only
c.
A and B only
d.
D and E only
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Which one of the following can be explained on the basis of Mendel's Law of Dominance?
A. Out of one pair of factors one is dominant and the other is recessive.
B. Alleles do not show any expression and both the characters appear as such in F2 generation.
C. Factors occur in pair in normal diploid plants.
D. The discrete unit controlling a particular character is called factor.
E. The expression of only one of the parental characters is found in a monohybrid cross.
Choose the correct answer from the options given below:
a.
B, C and D only
b.
A, B, C, D and E
c.
A, B and C only
d.
A, C, D and E only
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Given below are two statements:
Statement I: Bt toxins are insect group specific and coded by a gene cry IAc.
Statement II: Bt toxin exists as inactive protoxin in B. thuringiensis. However, after ingestion by the insect the inactive protoxin gets converted into active form due to acidic pH of the insect gut.
In the light of the above statements, choose the correct answer from the options given below:
a.
Statement I is true but Statement II is false.
b.
Statement I is false but Statement II is true.
c.
Both Statement I and Statement II are true.
d.
Both Statement I and Statement II are false.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Given below are two statements:
Statement I: Parenchyma is living but collenchyma is dead tissue.
Statement II: Gymnosperms lack xylem vessels but presence of xylem vessels is the characteristic of angiosperms.
In the light of the above statements, choose the correct answer from the options given below:
a.
Statement I is true but Statement II is false.
b.
Statement I is false but Statement II is true.
c.
Both Statement I and Statement II are true.
d.
Both Statement I and Statement II are false.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Given below are two statements:
Statement I: Parenchyma is living but collenchyma is dead tissue.
Statement II: Gymnosperms lack xylem vessels but presence of xylem vessels is the characteristic of angiosperms.
In the light of the above statements, choose the correct answer from the options given below:
a.
Statement I is true but Statement II is false.
b.
Statement I is false but Statement II is true.
c.
Both Statement I and Statement II are true.
d.
Both Statement I and Statement II are false.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Given below are two statements:
Statement I: Chromosomes become gradually visible under light microscope during leptotene stage.
Statement II: The beginning of diplotene stage is recognized by dissolution of synaptonemal complex.
In the light of the above statements, choose the correct answer from the options given below:
a.
Statement I is true but Statement II is false.
b.
Statement I is false but Statement II is true.
c.
Both Statement I and Statement II are true.
d.
Both Statement I and Statement II are false.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List-I with List-II.
List-I
(A) Nucleolus
(B) Centriole
(C) Leucoplasts
(D) Golgi apparatus
List-II
(I) Site of formation of glycolipid
(II) Organization like the cartwheel
(III) Site for active ribosomal RNA synthesis
(IV) For storing nutrients
Choose the correct answer from the options given below.
a.
A-III, B-IV, C-II, D-I
b.
A-I, B-II, C-III, D-IV
c.
A-III, B-II, C-IV, D-I
d.
A-II, B-III, C-I, D-IV
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List-I with List-II.
List-I
(A) Frederick Griffith
(B) Francois Jacob & Jacque Monod
(C) Har Gobind Khorana
(D) Meselson & Stahl
List-II
(I) Genetic code
(II) Semi-conservative mode of DNA replication
(III) Transformation
(IV) Lac operon
Choose the correct answer from the options given below.
a.
A-II, B-III, C-IV, D-I
b.
A-IV, B-I, C-II, D-III
c.
A-III, B-II, C-I, D-IV
d.
A-III, B-IV, C-I, D-II
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List-I with List-II.
List-I
(A) GLUT-4
(B) Insulin
(C) Trypsin
(D) Collagen
List-II
(I) Hormone
(II) Enzyme
(III) Intercellular ground substances
(IV) Enables glucose transport into cell.
Choose the correct answer from the options given below.
a.
A-II, B-III, C-IV, D-I
b.
A-III, B-IV, C-I, D-II
c.
A-IV, B-I, C-II, D-III
d.
A-I, B-II, C-III, D-IV
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Given below are two statements:
Statement I: In C3 plants, some O2 binds RuBisCO, hence CO2 fixation is decreased.
Statement II: In C4 plants, mesophyll cells show very little photorespiration while bundle sheath cells do not show photorespiration.
In the light of the above statements, choose the correct answer from the options given below:
a.
Statement I is true but Statement II is false.
b.
Statement I is false but Statement II is true.
c.
Both Statement I and Statement II are true.
d.
Both Statement I and Statement II are false.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List-I with List-II.
List-I
(A) Citric acid cycle
(B) Glycolysis
(C) Electron transport system
(D) Proton gradient
List-II
(I) Cytoplasm
(II) Mitochondrial matrix
(III) Intermembrane space of mitochondria
(IV) Inner mitochondrial membrane
Choose the correct answer from the options given below.
a.
A-III, B-IV, C-I, D-II
b.
A-IV, B-III, C-II, D-I
c.
A-I, B-II, C-III, D-IV
d.
A-II, B-I, C-IV, D-III
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List-I with List-II.
List-I: (A) Citric acid cycle, (B) Glycolysis, (C) Electron transport system, (D) Proton gradient
List-II: (I) Cytoplasm, (II) Mitochondrial matrix, (III) Intermembrane space of mitochondria, (IV) Inner mitochondrial membrane
Choose the correct answer from the options given below.
a.
A-III, B-IV, C-I, D-II
b.
A-IV, B-III, C-II, D-I
c.
A-I, B-II, C-III, D-IV
d.
A-II, B-I, C-IV, D-III
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
In an ecosystem if the Net Primary Productivity (NPP) of first trophic level is 100x kcal m^-2 yr^-1, what would be the GPP (Gross Primary Productivity) of the third trophic level of the same ecosystem?
a.
10x kcal m^-2 yr^-1
b.
100x/3 kcal m^-2 yr^-1
c.
x/10 kcal m^-2 yr^-1
d.
x kcal m^-2 yr^-1
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List-I with List-II.
List-I: (A) Rose, (B) Pea, (C) Cotton, (D) Mango
List-II: (I) Twisted aestivation, (II) Perigynous flower, (III) Drupe, (IV) Marginal placentation
Choose the correct answer from the options given below.
a.
A-IV, B-III, C-II, D-I
b.
A-II, B-III, C-IV, D-I
c.
A-II, B-IV, C-I, D-III
d.
A-I, B-II, C-III, D-IV
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List-I with List-II.
List-I: (A) Robert May, (B) Alexander von Humboldt, (C) Paul Ehrlich, (D) David Tilman
List-II: (I) Species-area relationship, (II) Long term ecosystem experiment using outdoor plots, (III) Global species diversity at about 7 million, (IV) Rivet popper hypothesis
Choose the correct answer from the options given below.
a.
A-I, B-III, C-II, D-IV
b.
A-III, B-IV, C-II, D-I
c.
A-II, B-III, C-I, D-IV
d.
A-III, B-I, C-IV, D-II
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List-I with List-II.
List-I (Types of stamen): (A) Monoadelphous, (B) Diadelphous, (C) Polyadelphous, (D) Epiphyllous
List-II (Example): (I) Citrus, (II) Pea, (III) Lily, (IV) China-rose
Choose the correct answer from the options given below.
a.
A-I, B-II, C-IV, D-III
b.
A-III, B-I, C-IV, D-II
c.
A-IV, B-II, C-I, D-III
d.
A-IV, B-I, C-II, D-III
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Read the following statements and choose the set of correct statements. In the members of Phaeophyceae:
A. Asexual reproduction occurs usually by biflagellate zoospores.
B. Sexual reproduction is by oogamous method only.
C. Stored food is in the form of carbohydrates which is either mannitol or laminarin.
D. The major pigments found are chlorophyll a, c and carotenoids and xanthophyll.
E. Vegetative cells have a cellulosic wall, usually covered on the outside by gelatinous coating of algin.
Choose the correct answer from the options given below:
a.
A, C, D and E only
b.
A, B, C and E only
c.
A, B, C and D only
d.
B, C, D and E only
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List I with List II:
List I: (A) Typhoid, (B) Leishmaniasis, (C) Ringworm, (D) Filariasis
List II: (I) Fungus, (II) Nematode, (III) Protozoa, (IV) Bacteria
Choose the correct answer from the options given below:
a.
A-III, B-I, C-IV, D-II
b.
A-II, B-IV, C-III, D-I
c.
A-I, B-III, C-II, D-IV
d.
A-IV, B-III, C-I, D-II
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List I with List II:
List I
A. Typhoid
B. Leishmaniasis
C. Ringworm
D. Filariasis
List II
I. Fungus
II. Nematode
III. Protozoa
IV. Bacteria
Choose the correct answer from the options given below:
a.
A-III, B-I, C-IV, D-II
b.
A-II, B-IV, C-III, D-I
c.
A-I, B-III, C-II, D-IV
d.
A-IV, B-III, C-I, D-II
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List I with List II:
List I: (A) Non-medicated IUD, (B) Copper releasing IUD, (C) Hormone releasing IUD, (D) Implants
List II: (I) Multiload 375, (II) Progestasert, (III) Lippes loop, (IV) LNG-20
Choose the correct answer from the options given below:
a.
A-IV, B-I, C-II, D-III
b.
A-III, B-I, C-IV, D-II
c.
A-III, B-I, C-II, D-IV
d.
A-I, B-III, C-IV, D-II
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List I with List II:
List I
A. Non-medicated IUD
B. Copper releasing IUD
C. Hormone releasing IUD
D. Implants
List II
I. Multiload 375
II. Progestasert
III. Lippes loop
IV. LNG-20
Choose the correct answer from the options given below:
a.
A-IV, B-I, C-II, D-III
b.
A-III, B-I, C-IV, D-II
c.
A-III, B-I, C-II, D-IV
d.
A-I, B-III, C-IV, D-II
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Given below are two statements:
Statement I: The presence or absence of hymen is not a reliable indicator of virginity.
Statement II: The hymen is torn during the first coitus only.
In the light of the above statements, choose the correct answer from the options given below:
a.
Statement I is true but Statement II is false.
b.
Statement I is false but Statement II is true.
c.
Both Statement I and Statement II are true.
d.
Both Statement I and Statement II are false.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List I with List II:
List I
A. Pons
B. Hypothalamus
C. Medulla
D. Cerebellum
List II
I. Provides additional space for neurons, regulates posture and balance
II. Controls respiration and gastric secretions
III. Connects different regions of the brain
IV. Neurosecretory cells
Choose the correct answer from the options given below:
a.
A-I, B-III, C-II, D-IV
b.
A-II, B-I, C-III, D-IV
c.
A-II, B-III, C-I, D-IV
d.
A-III, B-IV, C-II, D-I
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Following are the stages of cell division:
A. Gap 2 phase
B. Cytokinesis
C. Synthesis phase
D. Karyokinesis
E. Gap 1 phase
Choose the correct sequence of stages from the options given below:
a.
B-D-E-A-C
b.
E-C-A-D-B
c.
C-E-D-A-B
d.
E-B-D-A-C
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Which of the following are autoimmune disorders?
A. Myasthenia gravis
B. Rheumatoid arthritis
C. Gout
D. Muscular dystrophy
E. Systemic Lupus Erythematosus (SLE)
Choose the most appropriate answer from the options given below:
a.
B, C & E only
b.
C, D & E only
c.
A, B & D only
d.
A, B & E only
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List I with List II:
List I
A. Lipase
B. Nuclease
C. Protease
D. Amylase
List II
I. Peptide bond
II. Ester bond
III. Glycosidic bond
IV. Phosphodiester bond
Choose the correct answer from the options given below:
a.
A-II, B-IV, C-I, D-III
b.
A-IV, B-I, C-III, D-II
c.
A-IV, B-II, C-III, D-I
d.
A-III, B-II, C-I, D-IV
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List I with List II:
List I
A. Expiratory capacity
B. Functional residual capacity
C. Vital capacity
D. Inspiratory capacity
List II
I. Expiratory reserve volume + tidal volume + inspiratory reserve volume
II. Tidal volume + expiratory reserve volume
III. Tidal volume + inspiratory reserve volume
IV. Expiratory reserve volume + residual volume
Choose the correct answer from the options given below:
a.
A-II, B-I, C-IV, D-III
b.
A-I, B-III, C-II, D-IV
c.
A-II, B-IV, C-I, D-III
d.
A-III, B-II, C-IV, D-I
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List I with List II:
List I
A. Expiratory capacity
B. Functional residual capacity
C. Vital capacity
D. Inspiratory capacity
List II
I. Expiratory reserve volume + Tidal volume + Inspiratory reserve volume
II. Tidal volume + Expiratory reserve volume
III. Tidal volume + Inspiratory reserve volume
IV. Expiratory reserve volume + Residual volume
Choose the correct answer from the options given below:
a.
A-II, B-I, C-IV, D-III
b.
A-I, B-III, C-II, D-IV
c.
A-II, B-IV, C-I, D-III
d.
A-III, B-II, C-IV, D-I
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Given below are some stages of human evolution. Arrange them in the correct sequence (past to recent).
A. Homo habilis
B. Homo sapiens
C. Homo neanderthalensis
D. Homo erectus
Choose the correct sequence of human evolution from the options given below:
a.
C-B-D-A
b.
A-D-C-B
c.
D-A-C-B
d.
B-A-D-C
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Following are the stages of pathway for conduction of an action potential through the heart:
A. AV bundle
B. Purkinje fibres
C. AV node
D. Bundle branches
E. SA node
Choose the correct sequence of pathway from the options given below:
a.
B-D-E-C-A
b.
E-A-D-B-C
c.
E-C-A-D-B
d.
A-E-C-B-D
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R:
Assertion A: FSH acts upon ovarian follicles in female and Leydig cells in male.
Reason R: Growing ovarian follicles secrete estrogen in female while interstitial cells secrete androgen in male human being.
In the light of the above statements, choose the correct answer from the options given below:
a.
A is true but R is false
b.
A is false but R is true
c.
Both A and R are true and R is the correct explanation of A.
d.
Both A and R are true but R is NOT the correct explanation of A.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List I with List II:
List I
A. Cocaine
B. Heroin
C. Morphine
D. Marijuana
List II
I. Effective sedative in surgery
II. Cannabis sativa
III. Erythroxylum
IV. Papaver somniferum
Choose the correct answer from the options given below:
a.
A-II, B-I, C-III, D-IV
b.
A-III, B-IV, C-I, D-II
c.
A-IV, B-III, C-I, D-II
d.
A-I, B-III, C-II, D-IV
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Consider the following statements:
A. Annelids are true coelomates.
B. Poriferans are pseudocoelomates.
C. Aschelminthes are acoelomates.
D. Platyhelminthes are pseudocoelomates.
Choose the correct answer from the options given below:
a.
C only
b.
D only
c.
B only
d.
A only
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Consider the following statements:
A. Annelids are true coelomates
B. Poriferans are pseudocoelomates
C. Aschelminthes are acoelomates
D. Platyhelminthes are pseudocoelomates
Choose the correct answer from the options given below:
a.
C only
b.
D only
c.
B only
d.
A only
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Given below are two statements:
Statement I: In the nephron, the descending limb of loop of Henle is impermeable to water and permeable to electrolytes.
Statement II: The proximal convoluted tubule is lined by simple columnar brush border epithelium and increases the surface area for reabsorption.
In the light of the above statements, choose the correct answer from the options given below:
a.
Statement I is true but Statement II is false.
b.
Statement I is false but Statement II is true.
c.
Both Statement I and Statement II are true.
d.
Both Statement I and Statement II are false.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Given below are two statements:
Statement I: In the nephron the descending limb of loop of Henle is impermeable to water and permeable to electrolytes.
Statement II: The proximal convoluted tubule is lined by simple columnar brush border epithelium and increases the surface area for reabsorption.
In the light of the above statements, choose the correct answer from the options given below:
a.
Statement I is true but Statement II is false.
b.
Statement I is false but Statement II is true.
c.
Both Statement I and Statement II are true.
d.
Both Statement I and Statement II are false.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List I with List II:
List I List II
A. Fibrous joints I. Adjacent vertebrae, limited movement
B. Cartilaginous joints II. Humerus and pectoral girdle, rotational movement
C. Hinge III. Skull, don't allow any movement
D. Ball and socket joints IV. Knee, help in locomotion
Choose the correct answer from the options given below:
a.
A-II, B-III, C-I, D-IV
b.
A-III, B-I, C-IV, D-II
c.
A-IV, B-II, C-III, D-I
d.
A-I, B-III, C-II, D-IV
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List I with List II:
List-I List-II
A. Pleurobrachia I. Mollusca
B. Radula II. Ctenophora
C. Stomochord III. Osteichthyes
D. Air bladder IV. Hemichordata
Choose the correct answer from the options given below:
a.
A-II, B-IV, C-I, D-III
b.
A-IV, B-III, C-II, D-I
c.
A-IV, B-II, C-III, D-I
d.
A-II, B-I, C-IV, D-III
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List I with List II:
List-I List-II
A. Axoneme I. Centriole
B. Cartwheel pattern II. Cilia and flagella
C. Crista III. Chromosome
D. Satellite IV. Mitochondria
Choose the correct answer from the options given below:
a.
A-II, B-IV, C-I, D-III
b.
A-II, B-I, C-IV, D-III
c.
A-IV, B-III, C-II, D-I
d.
A-IV, B-II, C-III, D-II
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List I with List II:
List I (Sub phases of prophase I) List II (Specific characters)
A. Diakinesis I. Synaptonemal complex formation
B. Pachytene II. Completion of terminalisation of chiasmata
C. Zygotene III. Chromosomes look like thin threads
D. Leptotene IV. Appearance of recombination nodules
Choose the correct answer from the options given below:
a.
A-II, B-IV, C-I, D-III
b.
A-IV, B-III, C-II, D-I
c.
A-IV, B-II, C-III, D-I
d.
A-I, B-II, C-IV, D-III
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List I with List II:
List I List II
A. Common cold I. Plasmodium
B. Haemozoin II. Typhoid
C. Widal test III. Rhinoviruses
D. Allergy IV. Dust mites
Choose the correct answer from the options given below:
a.
A-III, B-I, C-II, D-IV
b.
A-IV, B-II, C-III, D-I
c.
A-II, B-IV, C-III, D-I
d.
A-I, B-III, C-II, D-IV
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R:
Assertion A: Breast-feeding during initial period of infant growth is recommended by doctors for bringing a healthy baby.
Reason R: Colostrum contains several antibodies absolutely essential to develop resistance for the newborn baby.
In the light of the above statements, choose the most appropriate answer from the options given below:
a.
A is correct but R is not correct.
b.
A is not correct but R is correct.
c.
Both A and R are correct and R is the correct explanation of A.
d.
Both A and R are correct but R is NOT the correct explanation of A.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List I with List II:
List-I List-II
A. Pterophyllum I. Hag fish
B. Myxine II. Saw fish
C. Pristis III. Angel fish
D. Exocoetus IV. Flying fish
Choose the correct answer from the options given below:
a.
A-IV, B-I, C-II, D-III
b.
A-III, B-II, C-I, D-IV
c.
A-II, B-I, C-III, D-IV
d.
A-III, B-I, C-II, D-IV
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List I with List II:
List I
A. Pterophyllum
B. Myxine
C. Pristis
D. Exocoetus
List II
I. Hag fish
II. Saw fish
III. Angel fish
IV. Flying fish
Choose the correct answer from the options given below:
a.
A-IV, B-I, C-II, D-III
b.
A-III, B-II, C-I, D-IV
c.
A-II, B-I, C-III, D-IV
d.
A-III, B-I, C-II, D-IV
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List I with List II:
List I
A. Down's syndrome
B. α-Thalassemia
C. β-Thalassemia
D. Klinefelter's syndrome
List II
I. 11th chromosome
II. 'X' chromosome
III. 21st chromosome
IV. 16th chromosome
Choose the correct answer from the options given below:
a.
A-III, B-IV, C-I, D-II
b.
A-IV, B-I, C-II, D-III
c.
A-I, B-II, C-III, D-IV
d.
A-II, B-III, C-IV, D-I
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
The following are the statements about non-chordates:
A. Pharynx is perforated by gill slits.
B. Notochord is absent.
C. Central nervous system is dorsal.
D. Heart is dorsal if present.
E. Post anal tail is absent.
Choose the most appropriate answer from the options given below:
a.
B, D and E only
b.
B, C and D only
c.
A and C only
d.
A, B and D only
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List I with List II:
List I
A. Mesozoic Era
B. Proterozoic Era
C. Cenozoic Era
D. Paleozoic Era
List II
I. Lower invertebrates
II. Fish & Amphibia
III. Birds & Reptiles
IV. Mammals
Choose the correct answer from the options given below:
a.
A-I, B-II, C-IV, D-III
b.
A-III, B-I, C-IV, D-II
c.
A-II, B-I, C-III, D-IV
d.
A-III, B-I, C-II, D-IV
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Given below are two statements:
Statement I: The cerebral hemispheres are connected by nerve tract known as corpus callosum.
Statement II: The brain stem consists of the medulla oblongata, pons and cerebrum.
In the light of the above statements, choose the most appropriate answer from the options given below:
a.
Statement I is correct but statement II is incorrect.
b.
Statement I is incorrect but statement II is correct.
c.
Both statement I and Statement II are correct.
d.
Both statement I and Statement II are incorrect.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List I with List II:
List I
A. RNA polymerase III
B. Termination of transcription
C. Splicing of exons
D. TATA box
List II
I. snRNPs
II. Promotor
III. Rho factor
IV. snRNAs, tRNA
Choose the correct answer from the options given below:
a.
A-III, B-IV, C-I, D-II
b.
A-IV, B-III, C-I, D-II
c.
A-II, B-IV, C-I, D-III
d.
A-III, B-II, C-IV, D-I
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List I with List II:
List I
A. Exophthalmic goiter
B. Acromegaly
C. Cushing's syndrome
D. Cretinism
List II
I. Excess secretion of cortisol, moon face & hyperglycemia
II. Hypo-secretion of thyroid hormone and stunted growth
III. Hyper secretion of thyroid hormone & protruding eye balls
IV. Excessive secretion of growth hormone
Choose the correct answer from the options given below:
a.
A-III, B-IV, C-II, D-I
b.
A-III, B-IV, C-I, D-II
c.
A-I, B-III, C-II, D-IV
d.
A-IV, B-II, C-I, D-III
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List I with List II:
List I
A. Unicellular glandular epithelium
B. Compound epithelium
C. Multicellular glandular epithelium
D. Endocrine glandular epithelium
List II
I. Salivary glands
II. Pancreas
III. Goblet cells of alimentary canal
IV. Moist surface of buccal cavity
Choose the correct answer from the options given below:
a.
A-III, B-IV, C-I, D-II
b.
A-II, B-I, C-IV, D-III
c.
A-II, B-I, C-III, D-IV
d.
A-IV, B-III, C-I, D-II
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List I with List II:
List I
A. Unicellular glandular epithelium
B. Compound epithelium
C. Multicellular glandular epithelium
D. Endocrine glandular epithelium
List II
I. Salivary glands
II. Pancreas
III. Goblet cells of alimentary canal
IV. Moist surface of buccal cavity
Choose the correct answer from the options given below:
a.
A-III, B-IV, C-I, D-II
b.
A-II, B-I, C-IV, D-III
c.
A-II, B-I, C-III, D-IV
d.
A-IV, B-III, C-I, D-II
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Given below are two statements:
Statement I: Bone marrow is the main lymphoid organ where all blood cells including lymphocytes are produced.
Statement II: Both bone marrow and thymus provide microenvironments for the development and maturation of T-lymphocytes.
In the light of the above statements, choose the most appropriate answer from the options given below:
a.
Statement I is correct but statement II is incorrect.
b.
Statement I is incorrect but statement II is correct.
c.
Both statement I and statement II are correct.
d.
Both statement I and statement II are incorrect.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List I with List II:
List I
A. The structures used for storing of food.
B. Ring of 6-8 blind tubules at junction of foregut and midgut.
C. Ring of 100-150 yellow coloured thin filaments at junction of midgut and hindgut.
D. The structures used for grinding the food.
List II
I. Gizzard
II. Gastric caeca
III. Malpighian tubules
IV. Crop
Choose the correct answer from the options given below:
a.
A-IV, B-III, C-II, D-I
b.
A-III, B-II, C-IV, D-I
c.
A-IV, B-II, C-III, D-I
d.
A-I, B-II, C-III, D-IV
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match List I with List II:
List I
A. P wave
B. QRS complex
C. T wave
D. T-P gap
List II
I. Heart muscles are electrically silent
II. Depolarisation of ventricles
III. Depolarisation of atria
IV. Repolarisation of ventricles
Choose the correct answer from the options given below:
a.
A-II, B-III, C-I, D-IV
b.
A-IV, B-II, C-I, D-III
c.
A-I, B-III, C-IV, D-II
d.
A-III, B-II, C-IV, D-I
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
As per ABO blood grouping system, the blood group of father is B+, mother is A+ and child is O+. Their respective genotypes can be:
A. I^B i / I^A i / ii
B. I^B I^B / I^A I^A / ii
C. I^A I^B / i I^A / I^B i
D. I^A i / I^B i / I^A i
E. i I^B / i I^A / I^A I^B
Choose the most appropriate answer from the options given below:
a.
C & B only
b.
D & E only
c.
A only
d.
B only
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Given below are two statements:
Statement I: Gause's competitive exclusive principle states that two closely related species competing for different resources cannot exist indefinitely.
Statement II: According to Gause's principle, during competition, the inferior will be eliminated. This may be true if resources are limiting.
In the light of the above statements, choose the most appropriate answer from the options given below:
a.
Statement I is true but Statement II is false.
b.
Statement I is false but statement II is true.
c.
Both statement I and statement II are true.
d.
Both statement I and statement II are false.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Regarding catalytic cycle of an enzyme action, select the correct sequential steps:
A. Substrate-enzyme complex formation
B. Free enzyme ready to bind with another substrate
C. Release of products
D. Chemical bonds of the substrate broken
E. Substrate binding to active site
Choose the correct answer from the options given below:
a.
B, A, C, D, E
b.
E, D, C, B, A
c.
E, A, D, C, B
d.
A, E, B, D, C
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Given below are two statements:
Statement I: Mitochondria and chloroplasts are both double membrane bound organelles.
Statement II: Inner membrane of mitochondria is relatively less permeable, as compared to chloroplast.
In the light of the above statements, choose the most appropriate answer from the options given below:
a.
Statement I is correct but statement II is incorrect.
b.
Statement I is incorrect but statement II is correct.
c.
Both statement I and Statement II are correct.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Given below are two statements: Statement I: Mitochondria and chloroplasts are both double membrane-bound organelles. Statement II: Inner membrane of mitochondria is relatively less permeable, as compared to chloroplast. In the light of the above statements, choose the most appropriate answer from the options given below:
a.
Statement I is correct but Statement II is incorrect.
b.
Statement I is incorrect but Statement II is correct.
c.
Both Statement I and Statement II are correct.
d.
Both Statement I and Statement II are incorrect.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
