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Question

A mature haploid female gametophyte has

A
8 cells and 7 nuclei
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B
7 cells and 8 nuclei
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C
6 cells and 7 nuclei
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D
7 cells and 6 nuclei
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Solution

The correct option is B 7 cells and 8 nuclei
A mature haploid female gametophyte i.e. the embryo sac consists of 2 synergids, 1 egg cell, 3 antipodal cells and a central cell. Hence, it has 7 cells.
Each of these cells has 1 nucleus except for the central cell which has 2 polar nuclei. Hence, the embryo sac has 7 cells in total and 8 nuclei.

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