Friday, August 19, 2011
Compare the two processes of cell division – mitosis and meiosis?
When referring to mitosis and meiosis, the two processes of cell division also have their similarities and differences. First, mitosis takes place in somatic cells where meiosis takes place in reproductive cells. In mitosis there is only a single division, and the number of chromosomes per nucleus remains the same after division. In meiosis there are two cell divisions (meiosis I and II), and the resulting daughter cell always contains only half the number of chromosomes that the mother cell had. In mitosis there is normally no pairing of logous chromosomes, but there is in meiosis during prophase I. In mitosis the centromeres are split during anaphase, and in meiosis they are split during anaphase II. One of the biggest differences is that there can be crossing over in meiosis, which leads to the many genetic variations of offspring that can be produced. Both processes result in the division of a cell. Do your own homework, it's not hard..
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