Endothecial cells of anther has fibrous thickenings of .........., lignin and pectin.

Suberin

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Cellulose

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Cutin

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Chitin

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Solution

The correct option is A Suberin
Endothecium is present below the epidermis. It is a layer of elongated cells which develop fibrous thickenings made up of mainly α-cellulose but traces of pectin and lignin are also present. These thickenings extend from the inner tangential walls.
So, the correct answer is B.

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