Question

Cryopreservation is _____________

• A. preservation of living beings in chemicals
• B. preservation at very low temperature
  
• C. preservation through exposure to irradiation
  
• D. preservation through use of gases
  

Answer 1

The correct option is B

preservation at very low temperature

Cryopreservation is the use of very low temperatures to preserve structurally intact living cells and tissues. Any chemical or enzymatic reaction is stopped without causing any damage. Any method of cryopreservation tries to reach the low temperature without causing any damage to the internal structures of the material.

Cryopreservation by liquid nitrogen is an important part of the assisted reproductive technologies used for breeding animals. It is used to maintain the germ cells of different animals.