Question

Pollen grains can be stored for several years in liquid nitrogen having a temperature of
(a) –120°C

(b) –80°C

(c) –196°C

(d) –160°C

Answer 1

Correct Option(c) –196°C

Explanation:

Pollen grains can be stored for several years in liquid nitrogen having a temperature of –196°C.

Pollen grains can be later used in plant breeding programmes.