Question #d6469

1 Answer
Dr Birendra Kumar Mishra
Nov 4, 2017

To maintain the chromosome number in the next generation and variations.

Explanation:

  1. Meiosis maintains the chromosomes number in the next generations. Otherwise, the number of chromosomes would be increased at each generation by the union of male and female gamete.
  2. The crossing over in the homologous chromosomes during the pachytene sub-phage of prophaes-1 of meiotic division facilitates the exchange of genes in homologous chromosomes. This event leads to new combinations of the genes, which are raw material for natural selection. Thank You
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