Which one of the following is not a method of in situ conservation of biodiversity?
a.
Biosphere Reserve
b.
Wildlife Sanctuary
c.
Botanical Garden
Correct Answer
d.
Sacred Grove
Step-by-Step AI Explanation
Verified Method
Botanical gardens are examples of ex situ conservation, where plants are maintained outside their natural habitats.
Q98mcq
Under which of the following conditions will there be no change in the reading frame of the following mRNA? 5'AACAGCGGUGCUAUU3'
a.
Insertion of G at 5th position
b.
Deletion of G from 5th position
c.
Insertion of A at G at 4th and 5th positions respectively
d.
Deletion of GGU from 7th, 8th and 9th positions
Correct Answer
Step-by-Step AI Explanation
Verified Method
Deletion or insertion of nucleotides in multiples of three does not cause a frameshift mutation, as it maintains the existing reading frame.
Q99mcq
Which of these following methods is the most suitable for disposal of nuclear waste?
a.
Shoot the waste into space
b.
Bury the waste under Antarctic ice-cover
c.
Dump the waste within rocks under deep ocean
d.
Bury the waste within rocks deep below the Earth's surface
Correct Answer
Step-by-Step AI Explanation
Verified Method
Burying nuclear waste deep within geological formations is the currently accepted safe method to prevent environmental contamination.
Q100mcq
Match the following organisms with the products they produce: (a) Lactobacillus (b) Saccharomyces cerevisiae (c) Aspergillus niger (d) Acetobacter aceti. Products: (i) Cheese (ii) Curd (iii) Citric Acid (iv) Bread (v) Acetic Acid.
What map unit (Centimorgan) is adopted in the construction of genetic maps?
a.
A unit of distance between two expressed genes, representing 10% cross over
b.
A unit of distance between two expressed genes, representing 100% cross over
c.
A unit of distance between genes on chromosomes, representing 1% cross over
Correct Answer
d.
A unit of distance between genes on chromosomes, representing 50% cross over
Step-by-Step AI Explanation
Verified Method
One centimorgan (cM) is defined as the distance between two linked genes where a crossover event occurs in 1% of the offspring.
Q102mcq
Select the hormone-releasing Intra-Uterine Devices?
a.
Vaults, LNG-20
b.
Multiload 375, Progestasert
c.
Progestasert, LNG-20
Correct Answer
d.
Lippes Loop, Multiload 375
Step-by-Step AI Explanation
Verified Method
Progestasert and LNG-20 are hormonal IUDs that release progestogens.
Q103mcq
Which of the following can be used as a biocontrol agent in the treatment of plant disease?
a.
Trichoderma
Correct Answer
b.
Chlorella
c.
Anabaena
d.
Lactobacillus
Step-by-Step AI Explanation
Verified Method
Trichoderma species are free-living fungi that are very common in root ecosystems and are used as effective biocontrol agents against several plant pathogens.
Q104mcq
Expressed Sequence Tags (ESTs) refers to:
a.
Genes expressed as RNA
Correct Answer
b.
Polypeptide expression
c.
DNA polymorphism
d.
Novel DNA sequences
Step-by-Step AI Explanation
Verified Method
ESTs are short sub-sequences of a cDNA sequence; they are used to identify gene transcripts and are instrumental in gene discovery.
Q105mcq
Colostrum, the yellowish fluid, secreted by mother during the initial days of lactation is very essential to impart immunity to the newborn infants because it contains:
a.
Natural killer cells
b.
Monocytes
c.
Macrophages
d.
Immunoglobulin A
Correct Answer
Step-by-Step AI Explanation
Verified Method
Colostrum contains abundant IgA antibodies, which provide passive immunity to the infant.
Q106mcq
Select the incorrect statement:
a.
Inbreeding increases homozygosity
b.
Inbreeding is essential to evolve purelines in any animal
c.
Inbreeding selects harmful recessive genes that reduce fertility and productivity
Correct Answer
d.
Inbreeding helps in accumulation of superior genes elimination of undesirable genes
Step-by-Step AI Explanation
Verified Method
Inbreeding exposes harmful recessive genes by expression, but it does not 'select' them; rather, continued inbreeding leads to inbreeding depression.
🎉 10 Free Sample Solutions Completed
Unlock All 100 Questions & Solutions
Sign up free in seconds to unlock step-by-step AI answers for the remaining 90 questions.
A gene locus has two alleles A, a. If the frequency of dominant allele A is 0.4 then what will be the frequency of homozygous dominant, heterozygous and homozygous recessive individuals in the population?
a.
0.36 (AA); 0.48(Aa); 0.16 (aa)
b.
0.16 (AA); 0.24 (Aa); 0.36 (aa)
c.
0.16 (AA); 0.48 (Aa); 0.36 (aa)
d.
0.16 (AA); 0.36 (Aa); 0.48 (aa)
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match the following organisms with their respective characteristics: (a) Pila (b) Bombyx (c) Pleurobrachia (d) Taenia. Characteristics: (i) Flame cells (ii) Comb plates (iii) Radula (iv) Malpighian tubules.
a.
(iii) (ii) (i) (iv)
b.
(iii) (iv) (ii) (i)
c.
(ii) (iv) (iii) (i)
d.
(iiii) (ii) (iv) (i)
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Use of an artificial kidney during hemodialysis may result in : (a) Nitrogenous waste build-up in the body (b) Non-elimination of excess potassium ions (c) Reduced absorption of calcium ions from gastro-intestinal tract (d) Reduced RBC production. Which of the following options is the most appropriate?
a.
(a) and (b) are correct
b.
(b) and (c) are correct
c.
(c) and (d) are correct
d.
(a) and (d) are correct
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Consider following features: (a) Organ system level of organisation (b) Bilateral symmetry (c) True coelomates with segmentation of body. Select the correct option of animal groups which possess all the above characteristics.
a.
Annelida, Arthropoda and Chordata
b.
Annelida, Arthropoda and Mollusca
c.
Arthropoda, Mollusca and Chordata
d.
Annelida, Mollusca and Chordata
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Consider following features:
(a) Organ system level of organisation
(b) Bilateral symmetry
(c) True coelomates with segmentation of body
Select the correct option of animal groups which possess all the above characteristics.
a.
Annelida, Arthropoda and Chordata
b.
Annelida, Arthropoda and Mollusca
c.
Arthropoda, Mollusca and Chordata
d.
Annelida, Mollusca and Chordata
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
In Antirrhinum (Snapdragon), a red flower was crossed with a white flower and in F1 generation, pink flowers were obtained. When pink flowers were selfed, the F2 generation showed white, red and pink flowers. Choose the incorrect statement from the following:
a.
This experiment does not follow the Principle of Dominance
b.
Pink colour in F1 is due to incomplete dominance.
c.
Ratio of F2 is 1/4 (Red) : 2/4 (Pink): 1/4 (White)
d.
Law of Segregation does not apply in this experiment.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
From evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in :
a.
Liverworts
b.
Mosses
c.
Pteridophytes
d.
Gymnosperms
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match the following structures with their respective location in organs : (a) Crypts of Lieberkuhn (b) Glisson's Capsule (c) Islets of Langerhans (d) Brunner's Glands
a.
(1) (iii) (i) (ii) (iv)
b.
(2) (ii) (iv) (i) (iii)
c.
(3) (iii) (iv) (i) (ii)
d.
(4) (iii) (ii) (i) (iv)
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
In a species, the weight of newborn ranges from 2 to 5 kg. 97% of the newborn with an average weight between 3 to 3.3kg survive whereas 99% of the infants born with weights from 2 to 2.5 kg or 4.5 to 5 kg die. Which type of selection process is taking place ?
a.
Directional Selection
b.
Stabilizing Selection
c.
Disruptive Selection
d.
Cyclical Selection
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) Coenzyme or metal ion that is tightly bound to enzyme protein is called prosthetic group. (B) A complete catalytic active enzyme with its bound prosthetic group is called apoenzyme.
a.
Both (A) and (B) are true.
b.
(A) is true and (B) is false.
c.
Both (A) and (B) are false.
d.
(A) is false and (B) is true.
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) Coenzyme or metal ion that is tightly bound to enzyme protein is called prosthetic group. (B) A complete catalytic active enzyme with its bound prosthetic group is called apoenzyme. Select the correct option.
a.
Both (A) and (B) are true.
b.
(A) is true and (B) is false.
c.
Both (A) and (B) are false.
d.
(A) is false and (B) is true.
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
It takes very long time for pineapple plants to produce flowers. Which combination of hormones can be applied to artificially induce flowering in pineapple plants throughout the year to increase yield?
a.
Auxin and Ethylene
b.
Gibberellin and Cytokinin
c.
Gibberellin and Abscisic acid
d.
Cytokinin and Abscisic acid
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match Column - I with Column - II. (a) Saprophyte (i) Symbiotic association of fungi with plant roots (b) Parasite (ii) Decomposition of dead organic materials (c) Lichens (iii) Living on living plants or animals (d) Mycorrhiza (iv) Symbiotic association of algae and fungi
a.
(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
b.
(a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)
c.
(a)-(ii), (b)-(i), (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.
What would be the heart rate of a person if the cardiac output is 5L, blood volume in the ventricles at the end of diastole is 100 mL and at the end of ventricular systole is 50 mL?
a.
50 beats per minute
b.
75 beats per minute
c.
100 beats per minute
d.
125 beats per minute
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match the following genes of the Lac operon with their respective products: (a) i gene (b) z gene (c) a gene (d) y gene. (i) β-galactosidase (ii) Permease (iii) Repressor (iv) Transacetylase
a.
(1) (i) (iii) (ii) (iv)
b.
(2) (iii) (i) (ii) (iv)
c.
(3) (iii) (i) (iv) (ii)
d.
(4) (iii) (iv) (i) (ii)
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match the following genes of the Lac operon with their respective products. (a) i gene (i) b-galactosidase (b) z gene (ii) Permease (c) a gene (iii) Repressor (d) y gene (iv) Transacetylase
a.
(a)-(iii), (b)-(i), (c)-(ii), (d)-(iv)
b.
(a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)
c.
(a)-(i), (b)-(iii), (c)-(ii), (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 the hominids with their correct brain size: (a) Homo habilis (b) Homo neanderthalensis (c) Homo erectus (d) Homo sapiens. (i) 900 cc (ii) 1350 cc (iii) 650-800 cc (iv) 1400 cc
a.
(1) (iii) (i) (iv) (ii)
b.
(2) (iii) (ii) (i) (iv)
c.
(3) (iii) (iv) (i) (ii)
d.
(4) (iv) (iii) (i) (ii)
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Tidal Volume and Expiratory Reserve Volume of an athlete is 500 mL and 1000 mL respectively. What will be his Expiratory Capacity if the Residual Volume is 1200 mL?
a.
1500 mL
b.
1700 mL
c.
2200 mL
d.
2700 mL
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match the Column - I with Column - II. (a) P-wave (b) QRS complex (c) T-wave (d) Reduction in the size of T-wave. (i) Depolarisation of ventricles (ii) Repolarisation of ventricles (iii) Coronary ischemia (iv) Depolarisation of atria (v) Repolarisation of atria
a.
(1) (iv) (i) (ii) (iii)
b.
(2) (iv) (i) (ii) (v)
c.
(3) (ii) (i) (v) (iii)
d.
(4) (ii) (iii) (v) (iv)
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
