Assertion :One diploid embryo sac mother cell develop within the nucellus of the ovule. Reason: Embryo sac mother cell divides meiotically and one of the cells produced becomes the haploid embryo sac.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

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Assertion is correct but Reason is incorrect.

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Assertion is incorrect but Reason is correct.

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
The embryo sac or female gametophyte is located in the nucellus that protects and nourishes it. It is the site where embryo sac mother cell develops. The megaspore mother cell undergoes meiosis to give rise to 4 haploid cells. Three haploid cells degenerate and 1 survives to become the haploid embryo sac. Thus the correct answer is option B.

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Choose the correct option.

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(b) Both assertion and reason are correct, but reason does not explain assertion.
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