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Question

A gymnosperm plant has 24 chromosomes in microspore mother cell. The number of chromosomes in its endosperm is ......

A
12
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B
24
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C
36
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D
48
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Solution

The correct option is A 12
A megaspore mother cell is a diploid cell in plants in which meiosis will occur, resulting in the production of four megaspores. Therefore in the given example the diploid chromosome number is 24. 2n=24. Thus the number of chromosome in the endosperm is 12, because endosperm in gymnosperm is haploid.

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