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Question

In Pinus ovule the number of integuments is

A
1
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B
3
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C
4
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D
2
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Solution

The correct option is A 1
A megasporangium or ovule of Pinus is orthotropous. It consists of nucellus covered by single integument (unitegmic). The integument is divided into an outer fleshy layer, a middle stony layer and an inner fleshy layer.

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