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Question

Choose the correct sequence of layers surrounding the microsporangium in angiosperms.

A
Tapetum - epidermis - middle layers - endothecium .
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B
Epidermis - middle layers - endothecium - tapetum.
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C
Endothecium - middle layers - tapetum- epidermis.
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D
Epidermis - endothecium - middle layers - tapetum.
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Solution

The correct option is D Epidermis - endothecium - middle layers - tapetum.
Microsporangium is surrounded by four wall layers. The correct sequence of layers is epidermis - endothecium - middle layers - tapetum.
Outer three layers are– the epidermis, endothecium, middle layers. The tapetum is the innermost layer.

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