Biology Multiple Choice Questions

a) DNA ligase

b) DNA polymerase

c) Restriction Endonuclease

d) S1 nuclease

a) Phenogram

b) Idiogram

c) Dendrogram

d) None of these

a) P 32

b) N 15

c) C 14

d) S 35

a) Galton

b) Anderson

c) Khorana

d) Garrod

a) The term hybrid vigour given by Schull is technically Heterosis

b) Hybrids are often superior to either parent due to homozygosity

c) A collection of clones having recombinant DNA is called gene pool

d) Eugenics is the study of improvement of present generation

a) H2A, H2B, H3, H4

b) H1, H2, H3, H4

c) H1A, H2B, H3, H4

d) H2A, H2B, H3B, H4B

a) Wheat and rye

b) Wheat and rice

c) Wheat and aegilops

d) Rice and maize

a) Antibiotics having ability to act only on several pathogenic species differing from each other in structure and composition of their cell wall

b) Antibiotics having ability to act only on one or two types of pathogenic species covering a board area

c) Antibiotics having ability to act ony on particular type of pathogenic species in huge quantity

d) Antibiotics which are active at microorganisms which live in higher in higher range spectrum

a) All isolated enzymes have been identified as protein

b) Compound similar in stucture to the substrate inhibit the reaction

c) Enzymes are found in living organisms and speed up certain reaction

d) Enzymes determine the direction of a reaction

a) The effect of substrate on the rate of enzymatic reaction

b) The effect of end product on the rate of enzymatic reaction

c) The effect of enzymes concentration on its reaction.

d) The effect of an external compound on the rate of enzymatic reaction

1. a
2. b
3. d
4. b
5. a
6. a
7. a
8. a
9. c
10. b