Some techniques where the principle of ex-situ conservation of biodiversity has been employed are as follows:
(i) Gene banks, e.g., seed banks, sperm and ova banks [0.5]
(ii) In vitro plant tissue and microbial culture collections [0.5]
(iii) Cryopreservation [0.5]
(iv) Special care is given to animals in zoological parks, botanical gardens and wildlife safari parks [0.5]