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Question

Which of the following is NOT correct regarding a pollen grain.


A

Germ pores are regions in exine that lack exine and sporopollenin.

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B

Hard outer layer of pollen is called Exine

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C

There are no pores present on exine.

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D

Sporopollenin is a material highly resistant to strong acids.

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Solution

The correct option is C

There are no pores present on exine.


Pollen grain has two layers- exine and intine. The exine, which is the outer covering , is made up of sporopollenin. The exine has minute pores on its surface called germ pores through which pollen tube generates. Germ pores or germinal furrows are regions in exine that lack sporopollenin. Pollen grain germinates through the germ spores to initiate the pollen tube


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