Answer any three of the following (restrict your answer to two or three important sentences):
(b) Cryopreservation

Explanation

Cryopreservation is the preservation of tissues, embryos gametes., etc., at a temperature of 196°0 (liquid nitrogen). The preserved material is revived through special technique when required.
Cryopreservation methods seek to reach low temperatures without causing additional damage due to the formation of ice during freezing. Traditional cryopreservation has relied on coating the material with cryoprotectants.