Read the following statements and choose the correct option.
Statement 1 : Gametes of threatened species can be preserved in viable and fertile condition for long periods using cryopreservation techniques.
Statement 2 : Cryopreservation is an in situ conservation technique.
Answer & explanation
Correct answer: option 3
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. Seeds
of different genetic strains of commercially important plants can be kept
for long periods in seed banks