Pollen grains can be stored for several years in liquid nitrogen having a temperature of
Option 1 : -120°C
Option 2 : -160°C
Option 3 : -80°C
Option 4 : -196°C
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Pollen grains can be stored for several years in liquid nitrogen having a temperature of
Option 1 : -120°C
Option 2 : -160°C
Option 3 : -80°C
Option 4 : -196°C