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Which of the following is commonly used for the cryopreservation of seeds?

1. Liquid Nitrogen
2. Hydrogen Peroxide
3. Dry Ice
4. Ethanol

Correct answer: Liquid Nitrogen

Solution

Cryopreservation is the preservation of biological material at very low temperatures. Liquid nitrogen is commonly used because it can maintain temperatures around -196b0C. The other options are not suitable for long-term cryogenic storage.

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