Why is meiosis necessary for multicellular organisms?

Answer 1

Meiosis is a process to convert a diploid cell to a haploid gamete, and cause a change in the genetic information to increase diversity in the offspring. So it is basically turning yours and your mates genes into a unique being in sexual reproduction.

Answer 2

Because this is the process necessary to reproduce - a key component of this process is the mixing up of two sets of DNA... so you get variety (this is necessary for evolution and survival).

Mitosis is cell division but there is no variety. Every cell in your body has the same DNA - just different genes are expressed based on the presence of chemicals that turn them on or not.

Answer 3

Meiosis is necessary for multicellular organisms because it allows for the formation of gametes (sperm and egg cells) with a haploid number of chromosomes. When these gametes fuse during fertilization, the resulting zygote will have the correct number of chromosomes for the species, ensuring genetic diversity and the ability to adapt to changing environments.

Answer 4

Meiosis results in the production of gametes thus it is indispensable for sexual reproduction.