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Question

Generally, number of integuments in the ovule of Angiosperms and Gymnosperms respectively is ____.

A
One and two
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B
One and one
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C
Two and one
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D
Two and two
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Solution

The correct option is B Two and one
Integuments are the protective covering of nucellus, which develops from the chalazal part of nucellus and surrounds it completely except a small portion (micropyle) at the opposite or terminal end.Gymnosperms have unitegmic (one integument) ovule and Angiosperms have bitegmic (two integuments) ovule.
Thus, the correct answer is option C.

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