Wednesday, August 24, 2011

3.24 a - Mitosis




mitosis - cell division --> growth/increase in number of cells

Outline of process:

- begin with cell - with nucleus. 
- number of chromosomes in the nucleus - diploid number (2n) 
- for humans 2n = 46
- for cats 2n = 38

- mitosis - cell divides into two cells, each with nucleus, each cell has a diploid nucleus - these cells are identical/daughter cells
- identical because 1. Same number of chromosomes. 2. same set of chromosomes 

How are the copies of chromosomes made? and how are they separated? 

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