What is common to the techniques (i) in vitro fertilisation, (ii) Cryopreservation and (iii) tissue culture?

Options

A. All are in-situ conservation methods.
B. All are ex-situ conservation methods.
C. All require ultra-modern equipment and large space.
D. All are methods of conservation of extinct organisms.

Answer

B

Explanation

Explanation : In-vitro fertilisation, cryo-preservation and tissue culture are all ex-situ conservation methods. Ex-situ (off site) conservation is a set of conservation techniques which involves the transfer of a target species away from its native habitat. At present gametes of threatened species can be preserved in viable conditions at very low temperature -196°C) for longer duration by cryopreservation method. Fertilisation can be achieved in laboratory through the process of in-vitro fertilisation, and species can be propagated by tissue-culture method which is a plant breeding principle.