Question

Why does meiosis produce cells with only half the amount of DNA? How does this aid in the formation of a healthy zygote?

Answer 1

Answer:

   In meiosis, a gamete-forming process in animals and plant and algal spores, the number of chromosomes is halved (from 2n an, for example) through a more complex division mechanism involving two division events, one reductive and other equational. During zygote formation, the gametes unite (n + n = 2n, where each haploid set came from one of the parents).

   If an error occurs in human meiotic division, gametes may have more or less chromosome numbers, resulting in chromosomal changes.

Answer 2

The cells are produced with only half the amount of cells because they pair up afterwards. This aids in the formation of a healthy zygote by ensuring that it will have the exact amount of DNA.