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Question

Pollen viability can be extended for years by storing pollen grains in



A

Liquid nitrogen at - 1960 C

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B

Liquid nitrogen at - 960 C

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C

Liquid nitrogen at - 1690 C

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D

Liquid nitrogen at -1000 C

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Solution

The correct option is A

Liquid nitrogen at - 1960 C


It is possible to store pollen grains of a large number of species for years in liquid nitrogen at -1960C. Such stored pollen can be used as pollen banks, similar to seed banks, in crop breeding programmes.


Biology

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