Why does multicellular organism require 2 types of celldivision?Which of the two produces greaternumber of cells?How many?
In multicellular organisms two types of cell division occurs-Meiosis and Mitosis.
Mitosis is required to produce genetically identical cells. For example, when zygote is formed the full organism develops by the process of mitosis and each cell is identical in genetic composition.
Meiosis is responsible for the formation of haploid gamete which when fertilise produces zygote which will form new organism. Thus the two processes are linked to each other and are required by multicellular organisms for their survival and growth.
Meiosis will produce more number of cells as compared to mitosis. Meiosis produce four haploid cells at a time while single mitosis produces two cells at a time.
Mitosis is required to produce genetically identical cells. For example, when zygote is formed the full organism develops by the process of mitosis and each cell is identical in genetic composition.
Meiosis is responsible for the formation of haploid gamete which when fertilise produces zygote which will form new organism. Thus the two processes are linked to each other and are required by multicellular organisms for their survival and growth.
Meiosis will produce more number of cells as compared to mitosis. Meiosis produce four haploid cells at a time while single mitosis produces two cells at a time.