Explain how advanced ex-situ conservation techniques assist in preserving threatened species of plants and animals.

Explanation

• Advanced techniques are being used now for ex situ conservation. Gametes of threatened species can be preserved in viable and fertile condition for long periods using cryopreservation techniques. Eggs can, thus, be fertilized invitro.
• In plants, the explants can be propagated using tissue culture methods and can be kept for long periods in seed banks.