Question

Pollen grains can be stored for several years in liquid nitrogen having a temperature of

• A. $-{196}^{o}C$
• B. $-{120}^{o}C$
• C. $-{160}^{o}C$
• D. $-{80}^{o}C$

Answer 1

Answer: (A)

$-{196}^{o}C$

Pollen grains can be stored for several years in liquid nitrogen at a temperature of -196℃ and this is known as cryopreservation. So, the correct answer is option A.