Biodiversity and Conservation — BIOLOGY STD 12 Science — Question

→ In this approach, threatened animals and plants are taken out from their natural habitat and placed in special setting where they can be protected and given special care.
→ Zoological parks, botanical gardens and wildlife safari parks serve this purpose.
→ There are many animals that have become extinct in the wild but continue to be maintained in zoological parks.
→ 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 fertilized in vitro.
→ Plants can be propagated using tissue culture methods.
→ Seeds of different genetic strains of commercially important plants can be kept for long periods in seed banks.