What occurs during crossing over?
Cell division is a process by which a cell divides into two or more daughter cells. cell division takes place through sequential events called cell cycle. A cell cycle is majorly divided in two phase, namely Interphase and M phase. Interphase forms most of the part of cell cycle and contribute about 95% in cell cycle. During Interphase, cell grows in size and accumulate nutrients that would be required during actual cell division. M phase is short but is a phase where actual cell division occurs.
There are mainly two types of division in M phase, mitosis and meiosis.
Mitosis is the genetic separation of a parent cell, resulting in two daughter cells that are identical to the parent and with each other. Mitosis results in two daughter cells and no change in the number of chromosomes occurs. Mitosis occurs only in somatic cells (2n), which includes any other cells in organisms except reproductive (germ) cells. Mitosis is responsible for reproducing somatic cells.
Meiosis is a two-cycle genetic separation of a parent cell which results in the production of four daughter cells that are not identical to each other or the parent. Meiosis leads to the production of germ cells, which germ cells are haploid(n) means they contain single set of chromosomes. Meiosis is responsible for reproducing germ cells. Meiosis consists of two genetic separations which results in formation of four daughter cells, and Mitosis consists of one genetic separation.
Meiosis ends up with sister cells, not being identical with each other or the parent cell while Mitosis has two sister cells, being identical to the parent cell.
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