How are pollen banks useful.

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The very important application of pollen bank is to preserve the biodiversity in the form of preservation of the value of genetic resources. It is very essential to establish 'Pollen Banks' where pollen grains of the desired species would be preserved as a genetic resource for the breeding program.

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How are pollen banks useful.

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(a) Name the organic material of the exine of the pollen grain. How is this material advantageous to pollen grain?
(b) Still, it is observed that it does not form a continuous layer around the pollen grain. Give reason.
(c) How are 'pollen banks' useful?

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(a) Name the organic material which makes up exine of the pollen grain. How is this material advantageous to pollen grain?

(b) Still it is observed that it does not form a continuous layer around the pollen grain. Give reason.

(c) How are 'pollen banks' useful? [3]

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In pollen banks, pollen grains are stored at _______ ̊C temperature.

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Paleontological studies use fossil pollen because
A. Pollen retains viability for long periods of time unlike male gametes in animals
B. The intine of pollen is very hard and stable and can be used in rescuing plant populations on
a decline
C. The exine of pollen retains its structure for long periods of time
D. Soil pollen banks, unlike soil seed banks, stay dormant for long periods of time

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