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Question

Pollen grains can be stored for several years in liquid nitrogen having a temperature of

A
-196°C
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B
-80°C
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C
-120 °C
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D
-160 °C
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Solution

The correct option is A -196°C
Pollen grains can be stored in liquid nitrogen (-196 degree Celsius) by a process known as cryopreservation. These stored pollen can be used as pollen banks, similar to seed banks, in crop breeding programmes.

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