In somatic cell division, a 2n parent cell doubles its DNA in unity with the cell cycle and distributes it to two daughter cells. In meiosis, on the other hand, a 2n cell doubles its DNA and undergo two successive divisions to become four 1n cells. read more
Secondly, mitosis is a division where the number of chromosomes in the parent before division and in the daughter cells remains same; which is necessary in case of somatic cells. In Meiosis, the number of chromosomes in the daughter cells is half the number of chromosomes in the parent. read more