CSIR UGC NET June 2010 Life science Paper

CSIR UGC NET June 2010 Life science Paper (Based on Memory)

Paper I

1. Which among the following is not a polymer?

a) rubber

b) cellulose

c) vinyl alcohol

2. Sky appears blue because of

a) scattering of light

b) composition of sunlight

c) a and b

3. Four times the square of a number is one more than three times the number. Find the number

a) 4         b) –4            c) 1          d) -1

4. Three balloons are of the same size,one was filled with hydrogen,another with helium and one with carbon dioxide. let F1, F2, F3 be the buoyant forces acting on them, then which of following is correct

a. F1>F2>F3            b. F3>F2>F1              c. F2=F1>F3             d. F3=F2>F1

5. Microorganism mostly used for controlling insect population include

a. Bacillus thuriengenesis                 b. Agrobacterium tumefaciens

6. Evolution of Dinosaurs time?

a. 6.5 millions years ago

b. 600 million yrs ago

c. 6 billion years ago

d. 60 million yrs ago.

7. Incorrect transfusion of blood results in death of the patient due to

a) precipitation

b) agglutination of blood cells

c) kidney failure

8. If the sample taken from HIV patient serum blood sample, will detect in Western blotting

a) viral antigens

b) viral particles

c) viral proteins-specific antibodies

9. The antibiotic which causes pre-chain termination in protein synthesis in E.coli

a) puromycin

b) chloramphenicol

c) tetracyclin

d) Streptomycin

10. A myopic person have astigmatism is correcting by using

a) spherical convex lens only

b) cylinderical and convex lens

c) concave and cylinderical lens

d) spheriacal concave lens only

11. Ammonia reacting with copper sulphate gives blue colored complex. The blue color is due

a) Cuprous

b) Cupric

c) Sulphate

d) Ammonium complex

12. When lactose operon and tryp operon are fused , B-galacoside will express when

a) Lactose and glucose are absent

b) only in presence of tryptophan

c) only in absence of tryptophan

d) lactose and glucose are present

13. Cadmium resistant plant is

a) Brassica juncea

14. Erb B2 gene is responsible for

a) breast cancer

b) lung cancer

c) cervical cancer

d) oval cancer

15. Macrophages give the foreign cells to

a) proteosome

b) lysozome

c) T cell

16. During synthesis phase of cell division, the amount of DNA doubles, then the number of chromosomes will

a) doubles

b) halves

c) remain unchanged

d) qudrables

17. Oxidation of copper sulphate occurs in

A. Zn + CuSO4 -- ZnSO4 + Cu

B. Cu + AgNo3 -- CuNo3 + Ag

C. MgSo4 + Cu -- CUSo4 + Mg

D. Cu + AuNo3 -- Au + CuNO3

a) A and C

b) B and C

c) C and D

d) Band D

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