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Cell Wall

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Question

The outermost and innermost wall layers of microsporangium in an anther are respectively.

A

Endothecium and tapetum

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B

Epidermis and endodermis

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C

Epidermis and middle layer

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D

Epidermis and tapetum

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Solution

The correct option is D Epidermis and tapetum
The wall layers of a microsporangium from outermost to innermost are: epidermis, endothecium, middle layers and tapetum. The first three layers generally provide protection and help in dehiscence of anther. Tapetum performs nutritive function for pollen grains.

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