1. Parts of Interphase

3. G1 Stage  Cell Grows  Carries out Normal functions

4. Replication  When a cell is getting ready to divide, at what stage does it replicate its DNA?

5. S Phase  S – Stands for Synthesis  The DNA is replicated in this stage

6. Human DNA  How many chromosomes do humans have in a body cell or Somatic Cell ?  46

7. Normal Chromosomes  When a cell has a normal number of chromosomes it is represented with the abbreviation 2n

8. Question  If a cell needs to copy its DNA in order to divide, How many chromosomes does a human cell have before it divides in mitosis?  46 x 2 = 92

9. Why is that?  If there are 2 cells as a result you need to have 92 or double the amount so that when the cell splits it can have the normal 2n number of chromosomes 46.

10. Another Name  2n or the normal number of chromosomes can also be called DIPLOID

11. G2 Phase  Cell goes through the last checkpoints to make sure it is ready to divide before it goes to mitosis