Match the items given in Column I with those in Column II and select the correct option given below:
d.
(4) iv i ii iii
Correct Answer
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Ultrafiltration occurs in the Malpighian corpuscle (iv). Concentration of urine involves Henle’s loop (i). Transport of urine occurs via the Ureter (ii). Storage of urine occurs in the Urinary bladder (iii).
Match the items given in Column I with those in Column II and select the correct option given below:
c.
(3) iv i ii iii
Correct Answer
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Glycosuria (iv) is the presence of glucose in urine. Gout (i) is accumulation of uric acid in joints. Renal calculi (ii) are masses of crystallised salts. Glomerular nephritis (iii) is inflammation in glomeruli.
Which of the following is an amino acid derived hormone?
b.
Epinephrine
Correct Answer
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Epinephrine (adrenaline) is synthesized from the amino acid tyrosine and is thus an amino acid derivative. Steroids include Estradiol, Estriol, and Ecdysone.
Which of the following hormones can play a significant role in osteoporosis?
a.
Estrogen and Parathyroid hormone
Correct Answer
b.
Aldosterone and Prolactin
c.
Parathyroid hormone and Prolactin
d.
Progesterone and Aldosterone
Step-by-Step AI Explanation
Verified Method
Estrogen deficiency in post-menopausal women leads to bone density loss. Excess Parathyroid hormone (PTH) causes bone resorption, contributing to osteoporosis.
Which of the following structures or regions is incorrectly paired with its function?
a.
Hypothalamus : production of releasing hormones and regulation of temperature, hunger and thirst.
b.
Medulla oblongata : controls respiration and cardiovascular reflexes.
c.
Corpus callosum : band of fibers connecting left and right cerebral hemispheres.
d.
Limbic system : consists of fibre tracts that interconnect different regions of brain; controls movement.
Correct Answer
Step-by-Step AI Explanation
Verified Method
The limbic system is associated with emotions, motivation, and memory, not with motor control/movement.
The transparent lens in the human eye is held in its place by
a.
smooth muscles attached to the iris
b.
ligaments attached to the ciliary body
Correct Answer
c.
smooth muscles attached to the ciliary body
d.
ligaments attached to the iris
Step-by-Step AI Explanation
Verified Method
The lens is held in position by suspensory ligaments which are attached to the ciliary body.
AGGTATCGCAT is a sequence from the coding strand of a gene. What will be the corresponding sequence of the transcribed mRNA?
b.
AGGUAUCGCAU
Correct Answer
Step-by-Step AI Explanation
Verified Method
The coding strand (non-template strand) is identical to the mRNA sequence, except that thymine (T) in DNA is replaced by uracil (U) in RNA.
AGGTATCGCAT is a sequence from the coding strand of a gene. What will be the corresponding sequence of the transcribed mRNA?
b.
AGGUAUCGCAU
Correct Answer
Step-by-Step AI Explanation
Verified Method
The mRNA sequence is complementary to the template strand but identical to the coding strand, with Uracil (U) replacing Thymine (T). Thus, AGGTATCGCAT becomes AGGUAUCGCAU.
All of the following are part of an operon except
a.
an enhancer
Correct Answer
Step-by-Step AI Explanation
Verified Method
An operon consists of a promoter, operator, and structural genes. Enhancers are regulatory sequences found in eukaryotes, not part of typical bacterial operons.
All of the following are part of an operon except
a.
an enhancer
Correct Answer
Step-by-Step AI Explanation
Verified Method
An operon consists of a promoter, operator, and structural genes. Enhancers are regulatory elements found in eukaryotes, not in bacterial operons.
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A woman has an X-linked condition on one of her X chromosomes. This chromosome can be inherited by
c.
Both sons and daughters
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A woman has an X-linked condition on one of her X chromosomes. This chromosome can be inherited by
c.
Both sons and daughters
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Match the items given in Column I with those in Column II: Column I: a. Proliferative Phase, b. Secretory Phase, c. Menstruation. Column II: i. Breakdown of endometrial lining, ii. Follicular Phase, iii. Luteal Phase.
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According to Hugo de Vries, the mechanism of evolution is
b.
Multiple step mutations
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According to Hugo de Vries, the mechanism of evolution is
b.
Multiple step mutations
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Among the following sets of examples for divergent evolution, select the incorrect option:
a.
Brain of bat, man and cheetah
b.
Forelimbs of man, bat and cheetah
c.
Eye of octopus, bat and man
d.
Heart of bat, man and cheetah
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The similarity of bone structure in the forelimbs of many vertebrates is an example of
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Which of the following is not an autoimmune disease?
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Which of the following characteristics represent ‘Inheritance of blood groups’ in humans? a. Dominance, b. Co-dominance, c. Multiple allele, d. Incomplete dominance, e. Polygenic inheritance.
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Conversion of milk to curd improves its nutritional value by increasing the amount of
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In which disease does mosquito transmitted pathogen cause chronic inflammation of lymphatic vessels?
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All of the following are included in ‘Ex-situ conservation’ except
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Match the items given in Column I with those in Column II: Column I: a. Eutrophication, b. Sanitary landfill, c. Snow blindness, d. Jhum cultivation. Column II: i. UV-B radiation, ii. Deforestation, iii. Nutrient enrichment, iv. Waste disposal.
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In a growing population of a country,
a.
reproductive and pre -reproductive individuals are equal in number.
b.
pre-reproductive individuals are more than the reproductive individuals.
c.
pre-reproductive individuals are less than the reproductive individuals.
d.
reproductive individuals are less than the post-reproductive individuals.
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Which part of poppy plant is used to obtain the drug ‘‘Smack’’?
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Which one of the following population interactions is widely used in medical science for the production of antibiotics?
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The contraceptive ‘SAHELI’
b.
blocks estrogen receptors in the uterus, preventing eggs from getting implanted.
c.
is a post-coital contraceptive.
d.
increases the concentration of estrogen and prevents ovulation in females.
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The amnion of mammalian embryo is derived from
a.
mesoderm and trophoblast
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The amnion of mammalian embryo is derived from
a.
mesoderm and trophoblast
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The difference between spermiogenesis and spermiation is
a.
In spermiogenesis spermatozoa from sertoli cells are released into the cavity of seminiferous tubules, while in spermiation spermatozoa are formed.
b.
In spermiogenesis spermatids are formed, while in spermiation spermatozoa are formed.
c.
In spermiogenesis spermatozoa are formed, while in spermiation spermatozoa are released from sertoli cells into the cavity of seminiferous tubules.
d.
In spermiogenesis spermatozoa are formed, while in spermiation spermatids are formed.
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The difference between spermiogenesis and spermiation is
a.
In spermiogenesis spermatozoa from sertoli cells are released into the cavity of seminiferous tubules, while in spermiation spermatozoa are formed.
b.
In spermiogenesis spermatids are formed, while in spermiation spermatozoa are formed.
c.
In spermiogenesis spermatozoa are formed, while in spermiation spermatozoa are released from sertoli cells into the cavity of seminiferous tubules.
d.
In spermiogenesis spermatozoa are formed, while in spermiation spermatids are formed.
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Hormones secreted by the placenta to maintain pregnancy are
a.
hCG, hPL, progestogens, estrogens
b.
hCG, hPL, progestogens, prolactin
c.
hCG, progestogens, estrogens, glucocorticoids
d.
hCG, hPL, estrogens, relaxin, oxytocin
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Hormones secreted by the placenta to maintain pregnancy are
a.
hCG, hPL, progestogens, estrogens
b.
hCG, hPL, progestogens, prolactin
c.
hCG, progestogens, estrogens, glucocorticoids
d.
hCG, hPL, estrogens, relaxin, oxytocin
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Match the items given in Column I with those in Column II and select the correct option given below:
Column I: a. Tricuspid valve, b. Bicuspid valve, c. Semilunar valve
Column II: i. Between left atrium and left ventricle, ii. Between right ventricle and pulmonary artery, iii. Between right atrium and right ventricle
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Match the items given in Column I with those in Column II and select the correct option given below:
Column I: a. Tidal volume, b. Inspiratory Reserve volume, c. Expiratory Reserve volume, d. Residual volume
Column II: i. 2500 – 3000 mL, ii. 1100 – 1200 mL, iii. 500 – 550 mL, iv. 1000 – 1100 mL
a.
a-i, b-iv, c-ii, d-iii
b.
a-iii, b-ii, c-i, d-iv
c.
a-iv, b-iii, c-ii, d-i
d.
a-iii, b-i, c-iv, d-ii
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Which of the following options correctly represents the lung conditions in asthma and emphysema, respectively?
a.
Increased respiratory surface; Inflammation of bronchioles
b.
Inflammation of bronchioles; Decreased respiratory surface
c.
Decreased respiratory surface; Inflammation of bronchioles
d.
Increased number of bronchioles; Increased respiratory surface
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Match the items given in Column I with those in Column II and select the correct option given below:
Column I: a. Fibrinogen, b. Globulin, c. Albumin
Column II: i. Osmotic balance, ii. Blood clotting, iii. Defence mechanism
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Which of the following is an occupational respiratory disorder?
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Calcium is important in skeletal muscle contraction because it
a.
detaches the myosin head from the actin filament.
b.
binds to troponin to remove the masking of active sites on actin for myosin.
c.
prevents the formation of bonds between the myosin cross bridges and the actin filament.
d.
activates the myosin ATPase by binding to it.
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Which of the following gastric cells indirectly help in erythropoiesis?
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Which one of these animals is not a homeotherm?
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Identify the vertebrate group of animals characterized by crop and gizzard in its digestive system.
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Ciliates differ from all other protozoans in
a.
using pseudopodia for capturing prey
b.
using flagella for locomotion
c.
having two types of nuclei
d.
having a contractile vacuole for removing excess water
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Which of the following animals does not undergo metamorphosis?
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Which of the following organisms are known as chief producers in the oceans?
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Which of the following organisms are known as chief producers in the oceans?
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Which of the following features is used to identify a male cockroach from a female cockroach?
a.
Forewings with darker tegmina
b.
Presence of a boat shaped sternum on the 9th abdominal segment
c.
Presence of anal cerci
d.
Presence of caudal styles
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Which of the following features is used to identify a male cockroach from a female cockroach?
a.
Forewings with darker tegmina
b.
Presence of a boat shaped sternum on the 9th abdominal segment
c.
Presence of anal cerci
d.
Presence of caudal styles
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Nissl bodies are mainly composed of
c.
Free ribosomes and RER
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Nissl bodies are mainly composed of
c.
Free ribosomes and RER
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Which of the following events does not occur in rough endoplasmic reticulum?
a.
Cleavage of signal peptide
c.
Phospholipid synthesis
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Which of the following events does not occur in rough endoplasmic reticulum?
a.
Cleavage of signal peptide
c.
Phospholipid synthesis
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Which of these statements is incorrect?
a.
Glycolysis operates as long as it is supplied with NAD that can pick up hydrogen atoms.
b.
Enzymes of TCA cycle are present in mitochondrial matrix.
c.
Oxidative phosphorylation takes place in outer mitochondrial membrane.
d.
Glycolysis occurs in cytosol.
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Which of these statements is incorrect?
a.
Glycolysis operates as long as it is supplied with NAD that can pick up hydrogen atoms.
b.
Enzymes of TCA cycle are present in mitochondrial matrix.
c.
Oxidative phosphorylation takes place in outer mitochondrial membrane.
d.
Glycolysis occurs in cytosol.
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Which of the following terms describe human dentition?
a.
Pleurodont, Monophyodont, Homodont
b.
Thecodont, Diphyodont, Homodont
c.
Pleurodont, Diphyodont, Heterodont
d.
Thecodont, Diphyodont, Heterodont
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Many ribosomes may associate with a single mRNA to form multiple copies of a polypeptide simultaneously. Such strings of ribosomes are termed as
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Select the incorrect match :
a.
Submetacentric – L-shaped chromosomes
b.
Lampbrush – Diplotene bivalents
c.
Polytene – Oocytes of amphibians
d.
Allosomes – Sex chromosomes
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Pneumatophores occur in
d.
Free-floating hydrophytes
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Sweet potato is a modified
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Which of the following statements is correct?
a.
Horsetails are gymnosperms.
b.
Ovules are not enclosed by ovary wall in gymnosperms.
c.
Stems are usually unbranched in both Cycas and Cedrus.
d.
Selaginella is heterosporous, while Salvinia is homosporous.
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Casparian strips occur in
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Secondary xylem and phloem in dicot stem are produced by
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Select the wrong statement :
a.
Pseudopodia are locomotory and feeding structures in Sporozoans.
b.
Cell wall is present in members of Fungi and Plantae.
c.
Mitochondria are the powerhouse of the cell in all kingdoms except Monera.
d.
Mushrooms belong to Basidiomycetes.
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Plants having little or no secondary growth are
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Which of the following pairs is wrongly matched?
a.
XO type sex determination : Grasshopper
b.
Starch synthesis in pea : Multiple alleles
d.
ABO blood grouping : Co-dominance
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Select the correct statement :
a.
Spliceosomes take part in translation.
b.
Franklin Stahl coined the term ‘‘linkage’’.
c.
Transduction was discovered by S. Altman.
d.
Punnett square was developed by a British scientist.
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The experimental proof for semiconservative replication of DNA was first shown in a
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Select the correct match :
a.
Matthew Meselson and F. Stahl – Pisum sativum
b.
Alec Jeffreys – Streptococcus pneumoniae
c.
Francois Jacob and Jacques Monod – Lac operon
d.
Alfred Hershey and Martha Chase – TMV
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Offsets are produced by
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Which of the following flowers only once in its life-time?
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Which of the following flowers only once in its life-time?
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Which of the following has proved helpful in preserving pollen as fossils?
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Which of the following has proved helpful in preserving pollen as fossils?
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World Ozone Day is celebrated on
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World Ozone Day is celebrated on
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Natality refers to
a.
Number of individuals leaving the habitat
c.
Number of individuals entering a habitat
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Natality refers to
a.
Number of individuals leaving the habitat
c.
Number of individuals entering a habitat
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What type of ecological pyramid would be obtained with the following data? Secondary consumer : 120 g, Primary consumer : 60 g, Primary producer : 10 g
a.
Upright pyramid of numbers
b.
Inverted pyramid of biomass
c.
Upright pyramid of biomass
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What type of ecological pyramid would be obtained with the following data? Secondary consumer: 120 g, Primary consumer: 60 g, Primary producer: 10 g
a.
Upright pyramid of numbers
b.
Inverted pyramid of biomass
c.
Upright pyramid of biomass
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Which of the following is a secondary pollutant?
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Which of the following is a secondary pollutant?
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Niche is
a.
the range of temperature that the organism needs to live
b.
all the biological factors in the organism’s environment
c.
the functional role played by the organism where it lives
d.
the physical space where an organism lives
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In stratosphere, which of the following elements acts as a catalyst in degradation of ozone and release of molecular oxygen?
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The correct order of steps in Polymerase Chain Reaction (PCR) is
a.
Denaturation, Extension, Annealing
b.
Extension, Denaturation, Annealing
c.
Denaturation, Annealing, Extension
d.
Annealing, Extension, Denaturation
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In India, the organisation responsible for assessing the safety of introducing genetically modified organisms for public use is
a.
Research Committee on Genetic Manipulation (RCGM)
b.
Indian Council of Medical Research (ICMR)
c.
Genetic Engineering Appraisal Committee (GEAC)
d.
Council for Scientific and Industrial Research (CSIR)
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Which of the following is commonly used as a vector for introducing a DNA fragment in human lymphocytes?
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Use of bioresources by multinational companies and organisations without authorisation from the concerned country and its people is called
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A ‘new’ variety of rice was patented by a foreign company, though such varieties have been present in India for a long time. This is related to
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Select the correct match:
a.
T.H. Morgan – Transduction
b.
Ribozyme – Nucleic acid
c.
G. Mendel – Transformation
d.
F2 × Recessive parent – Dihybrid cross
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Which of the following elements is responsible for maintaining turgor in cells?
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Which one of the following plants shows a very close relationship with a species of moth, where none of the two can complete its life cycle without the other?
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Pollen grains can be stored for several years in liquid nitrogen having a temperature of
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Double fertilization is
a.
Fusion of two male gametes with one egg
b.
Fusion of two male gametes of a pollen tube with two different eggs
c.
Syngamy and triple fusion
d.
Fusion of one male gamete with two polar nuclei
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Oxygen is not produced during photosynthesis by
b.
Green sulphur bacteria
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What is the role of NAD+ in cellular respiration?
a.
It is a nucleotide source for ATP synthesis.
b.
It functions as an enzyme.
c.
It is the final electron acceptor for anaerobic respiration.
d.
It functions as an electron carrier.
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In which of the following forms is iron absorbed by plants?
c.
Both ferric and ferrous
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In which of the following forms is iron absorbed by plants?
c.
Both ferric and ferrous
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The Golgi complex participates in
a.
Respiration in bacteria
c.
Activation of amino acid
d.
Formation of secretory vesicles
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The Golgi complex participates in
a.
Respiration in bacteria
c.
Activation of amino acid
d.
Formation of secretory vesicles
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Which among the following is not a prokaryote?
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Which among the following is not a prokaryote?
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Stomatal movement is not affected by
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Stomatal movement is not affected by
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Which of the following is not a product of light reaction of photosynthesis?
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Which of the following is not a product of light reaction of photosynthesis?
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Which of the following is true for nucleolus?
a.
It takes part in spindle formation.
b.
Larger nucleoli are present in dividing cells.
c.
It is a site for active ribosomal RNA synthesis.
d.
It is a membrane-bound structure.
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The stage during which separation of the paired homologous chromosomes begins is
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Stomata in grass leaf are
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Match the items given in Column I with those in Column II and select the correct option given below:
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Which one is wrongly matched?
a.
Gemma cups – Marchantia
b.
Uniflagellate gametes – Polysiphonia
c.
Unicellular organism – Chlorella
d.
Biflagellate zoospores – Brown algae
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After karyogamy followed by meiosis, spores are produced exogenously in
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Winged pollen grains are present in
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Which oxide of nitrogen is not a common pollutant introduced into the atmosphere both due to natural and human activity?
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