Agricultural Biotechnology MCQs

Question 1

Free living aerobic nitrogen fixing bacteria

Accepted Answer

Both A and B

Answer

Nostoc

Answer

Anabaena

Answer

Methanococcus

Question 2

The high light intensity can damage

Accepted Answer

D1 protein of photosystem II

Answer

D2 protein of photosystem II

Answer

D1 protein of photosystem I

Answer

D2 protein of photosystem I

Question 3

Nitrogenase enzyme is sensitive to

Accepted Answer

Oxygen

Answer

Carbon monoxide

Answer

Hydrogen

Answer

All of the above

Question 4

In tissue culture regeneration of shoot and root occurs by manipulating the balance of

Accepted Answer

Auxin and Cytokinin

Answer

Auxin and ABA

Answer

Cytokinin and ABA

Answer

Auxin and Ethylene

Question 5

The number of base pairs per turn in Z DNA is

Accepted Answer

12

Answer

11

Answer

10

Answer

9

Question 6

For cryopreservation, cooling agent is

Accepted Answer

Carbon oxide -43°C

Answer

Liquid nitrogen -96°C

Answer

Dry ice -89°C

Answer

Vapor nitrogen -150°C

Question 7

FMN is synthesized from

Accepted Answer

Riboflavin

Answer

Niacin

Answer

Thiamine

Answer

Pantothenic acid

Question 8

The number of ATPs consumed in nitrogen fixation is

Accepted Answer

16

Answer

12

Answer

15

Answer

18

Question 9

The isolation and production of indefinite number of copies of a single gene is called

Accepted Answer

Gene cloning

Answer

Gene bank

Answer

Genetic engineering

Answer

Gene pool