List of top Zoology Questions asked in CUET (PG)

A population has 600 individuals, 150 of genotype AA, 300 of genotype Aa and 150 of genotype aa. What is the frequency of allele A ?

Which of the following IUCN category is assigned when a species faces an extremely high or very high risk of extinction in the wild in immediate or near future?

The following statements are associated with human female reproductive physiology.
A. The uterine cycle during menstruation includes follicular phase, ovulation and luteal phase.
B. The degeneration of corpus luteum is called luteolysis.
C. An increase in plasma progestrone level synchronises with the luteal phase.
D. After oocyte matuaration, ovulation takes place.
Choose the correct answer from the options given below :

Match List-I with List-II:

	List-1 (Scientists)		List-II (Contribution)
A	Maxam-Gilbert	I	DNA polymerase isolation
B	Stanley Cohen	II	DNA sequencing
C	Kornberg	III	Genetic code
D	Har Gobind Khorana	IV	DNA cloning

Choose the correct answer from the options given below

Endomorph body type according to Sheldon is____.

Based on the context given below, answer the following questions:
Glycine is most often used as a buffering agent in biochemical experiments. This diprotic amino acid has a pKa value of 2.4 owing to carboxyl group and 9.6 owing to amino group. Glycine can exist as a zwitterion which can exist in either protonated form\((NH^+_3 )\) or as a free base \((-NH_2)\)because of the reversible reaction: 

Based on the context given below, answer the following questions:
DNA in eukaryotes is a double-helical structure with two anti-parallel strands intertwined equidistantly. The double-helical structure was deciphered by James Watson and Francis Crick on the basis of X-ray diffraction studies. The hydrophilic backbones of alternating sugar and phosphate groups are on the outside of the helix held together by phosphodiester bonds. The purine and pyrimidine bases of both the strands are stacked inside the double helix. Adenine binds with thymine with hydrogen bond and cytosine binds with guanine with hydrogen bond. The DNA is transcribed into messenger RNA, ribosomal RNA and transfer RNA. Messenger RNA is translated into protein in the cytoplasm.

Given below are two statements, one is labelled as Assertion (A) and the other is labelled as Reason (R):
Assertion (A): Archaeopteryx lithographica demonstrates phylogenetic relatedness between birds and reptiles.
Reason (R) :  Archaeopteryx lithographica was approximately the size of a crow with imprints of feathers, possessed beak-like jaws with small bony teeth set in sockets and a reptilian skeleton with a long bony tail. 
In the light of the above statements, choose the most appropriate answer from the options given below

Given below are two statements, one is labelled as Assertion (A) and the other is labelled as Reason (R):
Assertion (A): Only a few specific strains of E.coli are routinely used in recombinant DNA technology. 
Reason (R): E.coli divides rapidly under laboratory conditions than their native counterparts.
In the light of the above statements, choose the most appropriate answer from the options given below

Match List-I with List-II:

	List-1 (Hormone/Factor)		List-II (Role)
A	Erythropoietin	I	Enhancement of immune function
B	Platelet derived growth factor	II	Treatment of infertility
C	Chorionic gonadotropin	III	Stimulate formation of RBCs
D	Interleukin	IV	Stimulate wound healing

Choose the correct answer from the options given below

Given below are two statements, one is labelled as Assertion (A) and the other is labelled as Reason (R):
Assertion (A): Four distinctive characteristics of phylum Chordata are notochord; single, dorsal, tubular nerve cord; pharyngeal pouches and postanal tail. 
Reason (R) : The distinctive characteristics of phylum Chordata remain unchanged throughout the life of these animals. 
In the light of the above statements, choose the most appropriate answer from the options given below

Which one of the following methods can be used for detecting DNA-protein interaction?

In a PCR, the reaction tubes are incubated first at 94 °C for 3 minutes, at 58 °C for 1 minute and at 72 °C for 2 minutes. What is the sequence of processes happening inside the tubes containing DNA template, dNTPs and Taq DNA polymerase?

Match List-I with List-II:

	List-1 (Antibiotic)		List-II (Mode of action)
A	Tetracycline	I	Prevents initiation of amino- acyl tRNA binding
B	Fusidic acid	II	Prevents ternany complex binding to ribosome
C	Macrolides	III	Prevents exit of polypeptide from ribosome
D	Kasugamycin	IV	Prevents EF-G dissociation

Choose the correct answer from the options given below

Given below are two statements, one is labelled as Assertion (A) and the other is labelled as Reason (R):
Assertion (A): DNA fragments from any source can be cloned into a plasmid. 
Reason (R) : A plasmid can be transferred to other cells by gene transfer mechanism such as transformation and transduction. 
In the light of the above statements, choose the most appropriate answer from the options given below

Given below are two statements, one is labelled as Assertion (A) and the other is labelled as Reason (R):
Assertion (A) : DNA is a stable genetic material. 
Reason (R) : DNA is double-stranded only. 
In the light of the above statements, choose the most appropriate answer from the options given below

Given below are two statements, one is labelled as Assertion (A) and the other is labelled as Reason (R):
Assertion (A): Gastrulation in frog begins at a point on the embryo surface called blastopore. 
Reason (R) : Hensen's node is the functional equivalent of the dorsal lip of the amphibian blastopore. 
In the light of the above statements, choose the most appropriate answer from the options given below

HAT selection media used in monoclonal antibody production consist of

Given below are two statements, one is labelled as Assertion (A) and the other is labelled as Reason (R):
Assertion (A): Activated macrophages are more effective than resting ones in eliminating pathogens. 
Reason (R) : Activated macrophages show increased phagocytic activity and ability to activate T cells. 
In the light of the above statements, choose the most appropriate answer from the options given below

Match List-I with List-II:

	List-1 (Complement protein)		List-II (Complement pathway)
A	C1	I	Lectin pathway
B	C4	II	Classical pathway
C	Factor B	III	Alternative pathway
D	Masp-1	IV	Classical and lectin pathway

Choose the correct answer from the options given below

Match List-I with List-II:

	List-1 (Period)		List-II (Event)
A	Carboniferous period	I	Origin of reptiles
B	Quaternary period	II	Origin of genus 'Homo'
C	Permian period	III	Origin of present-day insects
D	Devonian period	IV	Origin of tetrapods

Choose the correct answer from the options given below

Match List-I with List-II:

	List-1 (Enzyme Class)		List-II (Type of reaction catalysis)
A	Oxidoreductases	I	Cleavage of C-C, C-O, C-N or other bonds by elimination
B	Transferases	II	Transfer of electrons (hydride ions or H atoms)
C	Lyases	III	Group transfer reaction
D	Ligases	IV	Formation of C-C, C-S, C-O and C-N bonds by condensation reaction

Choose the correct answer from the options given below

Match List-I with List-II:

	List-1 (Proteins)		List-II (Function)
A	BCI-2	I	Growth factor receptor
B	Bax	II	Suppressor of apoptosis
C	Rb	III	Inducer of apoptosis
D	EGFR	IV	Suppressor of retino- blastoma

Choose the correct answer from the options given below

Match List-I with List-II:

	List-1 (Adaptation)		List-II (Animal)
A	Oxidoreductases	I	Canyon tree frog
B	Cryptic coloration	II	Poison dart frog
C	Aposematism	III	Skunks
D	Chemical defences	IV	Bats

Choose the correct answer from the options given below

Which of the following statements are related to nutrition?
A. Parietal cells in the stomach secrete pepsinogen.
B. Exocrine cells in the pancreas secrete digestive enzyme.
C. Liver stores glucose in the form of starch.
D. Lysozyme is present in the saliva which kills microorganisms.
Choose the correct answer from the options given below