set 3 MCQ Questions & Answers Detailed Explanation

Question : 1

Consider the following statements :

1. Sex is determined by different factors in various species.
2. Exchange of genetic material takes place in asexual reproduction.

a) Both A and B

b) A only

c) B only

d) Neither A nor B

Question : 2

Bacillus thuringiensis (Bt) strains have been used for designing novel –

a) Bio-mineralization processes

b) Bio-metallurgical techniques

c) Bio-insecticidal plants

d) Bio-fertilizers

Question : 3

In animals sex determination is due to

a) A-chromosome

b) X-chromosome

c) Y-chromosome

d) B-chromosome

Question : 4

World level program ‘Human Genome Project’ is related with

a) Genetic improvements of human breeds

b) Establishment of Superman society

c) Identification of colour distinct breeds

d) Identification and mapping of human genes and its sequence

Question : 5

Assertion (A):
‘Goldern rice’ is a biotechnological achievement to the benefit of consumers as much as the farmers.
Reason (R):
The yellow colour of this rice reflects a high level of beta carotene, a compound that is converted to vitamin A in the body.
Code

a) (A) is true, but (R) is false

b) Both (A) and (R) are true and (R) is the correct explanation of (A)

c) Both (A) and (R) are true, but (R) is not the correct explanation of (A)

d) (A) is false, but (R) is true

Question : 6

Who synthesized the DNA in vitro?

a) Edward Jenner

b) Arthur Kornberg

c) Robert Hooke

d) Joseph Lister