Conservation · Botany

Cryopreservation of plant germplasm is typically carried out at which temperature?

  1. 0°C
  2. -20°C
  3. -80°C
  4. -196°C
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Correct answer: -196°C

Cryopreservation uses liquid nitrogen at -196°C to suspend all metabolic activities in plant tissues. This allows for the indefinite storage of genetic resources without the risk of genetic drift.

Difficulty: Medium Question 7 of 20

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