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Biodiversity and Conservation — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYBiodiversity and Conservation4 Marks
Question
Write notes on ex-situ conservation of biodiversity
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Answer

Ex-situ conservation (Off-site conservation):
  • This approach involves placing threatened animals and plants in special care units for their protection.
  • India has 35 botanical gardens and 275 zoological parks where animals which have become extinct in wild are maintained.
  • By using cryopreservation (preservation at -196°C) technique, sperms, eggs, animal cells, tissues and embryos can be stored for long period in genes banks, seed banks, etc.
  • Plants are propagated in vitro using tissue culture methods (micropropagation).
  • It is the desirable approach when urgent measures to save extinction are required.

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