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Mitosis takes place in a cell nucleus and that involves one cell duplicating and dividing.
There are two types of cell division: mitosis and meiosis. When people talk about "cell division" they usually mean mitosis, the process of making new cells in the body.Meiosis is a type of cell division that produces egg and sperm cells .
Mitosis is a process fundamental to life. During mitosis, the cell replicates all its contents, including chromosomes, and divides to form her two identical daughter cells. This process is so critical that mitotic steps are carefully controlled by specific genes. Health problems such as cancer can occur when mitosis is not properly regulated.
Another type of cell division, meiosis, ensures that humans have the same number of chromosomes in each generation. This is a two-step process in which the number of chromosomes is halved from 46 to 23 to form sperm and eggs. When the sperm and egg cells combine at conception, each contributes her 23 chromosomes, so the resulting embryo is usually 46. Meiosis also enables genetic variation through the process of gene shuffling that accompanies cell division.
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