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  4. In flowering plants, double fertilization and triple fusion is a unique phenomenon. For a given plant, during the study of the endosperm, it was found that it has 24 chromosomes. What will the number of chromosomes in microspore mother cells?

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Q. In flowering plants, double fertilization and triple fusion is a unique phenomenon. For a given plant, during the study of the endosperm, it was found that it has 24 chromosomes. What will the number of chromosomes in microspore mother cells?

NTA AbhyasNTA Abhyas 2020Sexual Reproduction in Flowering Plants

Solution:

The endosperm is triploid in nature in angiosperms, while microspore mother cells are diploid structures.
Since the number of chromosomes in the endosperm is 24 = 3n. Therefore n = 8.
Hence, the number of chromosomes in the microspore mother cell will be 2n = 2x8 =16.