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1. Chitin, the characteristic constituent of insect cuticle is a :
(A) protein (B) polysaccharide
(C) lipid (D) glycerophosphate

2. Single character which distinguishes Chelicerata from other arthropods is :
(A) presence of carapace (B) presence of telson
(C) absence of antennae (D) absence of compound eyes

3. Silk the commercial fiber, is produced by :
(A) adult worm (B) pupa
(C) larva (D) imago

4. A parasitoid is a :
(A) super parasite (B) microscopic parasite
(C) parasite living on another parasite (D) parasite fatal to the host

5. Sense organs which are responsive to body movement are :
(A) thigmoreceptors (B) hygroreceptors
(C) proprioreceptors (D) photoreceptors

6. Elementary particles are :
(A) attached to the inner mitochondrial membrane
(B) present in the matrix of mitochondria
(C) present in the inter membrane space
(D) attached to the outer membrane of mitochondria

7. Which of the following is not a fish ?
(A) silver fish (B) cat fish
(C) dog fish (D) flat fish

8. IVF refers to :
(A) fertilization in fallopian tube (B) fertilization in vagina
(C) uterine infection (D) fertilization in petri dish

9. Vocal sacs are present in :
(A) frog (B) lizard
(C) pigeon (D) dog-fish

10. Teeth are absent in :
(A) frog (B) lizard
(C) pigeon (D) dog-fish

11. The skull of which one is monocondylic :
(A) frog (B) lizard
(C) pigeon (D) dog-fish

12. Cholecystokinin is produced by........... and is concerned with........
(A) brain, memory (B) small intestine, digestion
(C) kidney, excretion (D) thyroid, synthesis of cholesterol

13. Spread of cancer cells from primary site to origin to other tissues of the body is known as :
(A) metastasis (B) metaplacia
(C) hyperplacia (D) displacia

14. Which of the following enzymes is not concerned with citric acid cycle ?
(A) lactate dehydrogenase (B) citrate synthase
(C) isocitrate dehydrogenase (D) a- ketoglutarate dehydrogenase

15. In this process the solute moves with the help of a carrier protein along the concentration gradient and no energy is needed. The process is known as :
(A) passive diffusion (B) facilitated diffusion
(C) active transport (D) osmosis

16. The Na+ K+ pump is responsible for maintaining :
(A) high concentration of Na+ and low concentration of K+ in the cells
(B) high concentration of K+ and low concentration of Na+ in the cells
(C) equal concentration of Na+ and K+ in the cells
(D) pumping out Na+ and K+ from the cells

17. This technology uses restriction endonucleases to recognize and cleave short sequences
of DNA. The technology is known as :
(A) RFLP (B) Recombinant DNA technology
(C) PCR (D) RT-PCR

18. Eco R1 is the name of a :
(A) bacterium (B) virus
(C) gene (D) restriction enzyme
M.Sc.(Hons. School/2 Year Course)-Zoology/210101/DNB-11716 2

19. Some bacteria contain small, independent circular double stranded DNA molecules known as :
(A) plasmid (B) cosmid
(C) phasmid (D) amphid

20. Insulin is produced by :
(A) -cells of pancreas (B) -cells of islets of Langerhans
(C) -cells of islets of Langerhans (D) c-cells of thyroid