Write briefly the significance of mitosis and meiosis in multicellular organism.

Explanation

Significance of Mitosis :
`1)` Growth is organisms is caused by Mitosis.
`2)` The daughter cells formed by Mitosis are identical eith the mother cell in characters. Hence it is important in conserving the genetic diversity of the organisms.
`3)` In unicellular organisms, Mitosis help in reproduction.
`4)` The old dead and decaying cells of body are replaced with the help of Mitosis.
`5)` It is useful in regeneration of lost parts and for grafting in vegetative reproduction.
Significance of Meiosis :
`1)` Meiosis helps in the maintenance of a constant chromosome number from one generation to the next.
`2)` Duw to crossing over, genetic recombinations are caused which help in the origin of new species and lead to evolution.
`3)` It helps in the formation of gametes and is thus useful in sexual reproduction.