Endangered Plants · Botany

Which technique is used to preserve the tissues of endangered plants at ultra-low temperatures (usually in liquid nitrogen)?

  1. Hydroponics
  2. Micropropagation
  3. Thermotherapy
  4. Cryopreservation
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Correct answer: Cryopreservation

Cryopreservation allows plant cells, seeds, or embryos to be stored indefinitely at -196°C. This stops all biological activity, ensuring the long-term survival of genetic material for critically endangered species.

Difficulty: Medium Question 14 of 20

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