3.24a Mitosis 1

understand that division of a diploid cell by mitosis produces two cells which contain identical sets of chromosomes.
-mitosis is a form of cell division.
-cell division results in growth and growth occurs by an increase in the number of cells.

-diagram shows a normal cell with its nucleus.
-the number of chromosomes in this nucleus is known as the diploid number (can be shown as [symbol] 2n)
- humans: 2n = 46
- cats: 2n = 38
-in the process of mitosis the cell will divide into 2 cells, each with a nucleus.
-if you look inside the nucleus you will find that each of these cells will have a diploid nucleus- the cells are identical-sometimes described as daughter cells.
-identical in 2 ways:

• same number of chromosomes
• they have the same set of chromosomes- if we choose one chromosome from the nucleus of one cell you will find an identical version of that chromosome in the other cell (there have been 2 sets produced)