alleryGametes of threatened species can be preserved for long periods using:
AChromatography
BCrystallisation
CCentrifugation
DCryopreservation
Answer & Solution
Correct answer: D. Cryopreservation
1. Ex situ conservation now goes beyond zoos and gardens.
2. Gametes can be kept viable and fertile indefinitely.
3. That is done using cryopreservation techniques.
4. Eggs can then be fertilised in vitro.
_Source: syllabus Biology, Ch 13 'Biodiversity and Conservation'_
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