Question

write briefly the significance of mitosis and meiosis in multicellular organisms​

Answer 1

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SIGNIFICANCE OF MITOSIS; -

. growth in organisms is caused by mitosis and it restores the surface of volume ratio of the cell.

. the daughter cells formed by mitosis are identical with the mother cell. hence it is important in conserving the genetic intergrity of the organisms.

. in unicellular organisms mitosis helps in reproduction.

. mitosis helps in wound healing and regeneration of lost plant parts.

. mitosis helps for grafting in vegetative reproduction.

. it maintains a constant number of chromosomes in all the cells of the body.

SIGNIFICANCE OF MEIOSIS:-

. it helps in the maintenance of a constant chromosome number from one genaration to the next.

. due to crossing over genetic recombination are caused which help in the origin of new species and lead to evolution.

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Answer 2

Answer:

Significance of Mitosis:

Mitosis or the equational division is usually restricted to the diploid cells only. However, in some lower plants mitosis usually results in the production of diploid daughter cells with identical genetic complement. The growth of multicellular organisms is due to mitosis.