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Question

Perisperm is

A
Outer part of embryo sac
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B
Degenerate synergid
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C
Degenerate secondary nucleus
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D
Remains of nucellus
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Solution

The correct option is C Remains of nucellus
The nucleus is the innermost part of the ovule. Perisperm is remains of the nucleus in seeds. After fertilization, the nucleus develops into perisperm. It provides the nutrition to the developing embryo. It is formed at the mycroplylar end. It appears as a reddish papery structure. It is present in some seeds like beet and black pepper.
So, the correct answer is option D.

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