Q. An angiospermic plant has 24 chromosomes in microspore mother cell. The number of chromosomes in its endosperm will be

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Solution:

Microspore mother cells are diploid. As the chromosome number is 24, the chromosome number in the pollen grain will be 12 after reduction division. As the endosperm in angiosperm is formed due to fertilisation of diploid secondary nucleus of embryo-sac and one male gamete, the chromosome number will be 36.