NATS 1675 Lecture Notes - Lecture 4: Sister Chromatids, Nuclear Membrane, Prophase
25 Apr 2015
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Document Summary
There are two types of cell division; mitosis & meiosis. Mitosis a kind of cell division in which two identical cells are produced. It is used as one method of reproduction for single celled microorganisms such as protests and bacteria. It is also the type of cell division that occurs in multi-cellular organisms for growth, repair and replacement. We want the exact same cell carrying the exact same information. People start out as one cell, and from that point on it is mitosis. When you reach your adult height, this division is not longer needed for growth but it still good for repair & replacement. Meiosis a process of cell division by which gametes containing half the normal number of chromosomes are produced. This division is gong on through your reproductive system. We have 23 pairs or 46 chromosomes, 23 from mum and 23 from dad. You want your offspring to have the same number of chromosomes.
