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How chromosome number is maintained during mitosis and meosis?

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The number of chromosomes is maintained in the offspring because, after the meiotic division during gamete formation the number of chromosomes is reduced to half. It again gets doubled after fertilization of gametes. In this way chromosome number is maintained.

The chromosome number is already maintained in mitosis as it is an equational division and chromosome no. is not reduced to half at any point in this cell cycle.
 
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  • The chromosome number remains constant (46 total chromosomes or 23 pairs of chromosomes).
  • The chromatids replicate during interphase to produce a total of 92 chromatins, but they're only found in pairs and remain connected at the center by the centromere.
  • After mitosis, the chromatid pairs separate, so each daughter cell gets 46 chromatins.
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