Which of the following is an example of 'Ex-situ Conservation' of threatened animals and plants?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → Cryopreservation and Tissue Culture
Option (4) Cryopreservation and Tissue Culture — Correct. Ex situ conservation protects species away from their natural habitat. Cryopreservation (keeping gametes at very low temperature) and tissue culture are ex situ methods, as are zoos, botanical gardens and seed banks.
NCERT Extract:
How Do We Conserve Biodiversity? – “… In recent years ex situ conservation has advanced beyond keeping threatened species in enclosures. Now gametes of threatened species can be preserved in viable and fertile condition for long periods using cryopreservation techniques, eggs can be fertilised in vitro, and plants can be propagated using tissue culture methods.”