00:02
Let's talk about the cell cycle for a minute.
00:05
A cell goes through a phase where it grows, call that g1, then it goes through a stage where it copies the dna, that's called s for synthesis, then it grows some more, g2, and then it will divide, potentially, it will go through mitosis.
00:26
This cell cycle, all cells are going to go through this cycle as an organism lives.
00:31
The cells in your body are doing this.
00:34
When you are in homeostasis, this cell cycle is working as it should.
00:42
This cell here will grow when it needs to, it will divide when it needs to, it will copy its dna when it needs to.
00:48
To make sure that's happening, to make sure that homeostasis is being achieved, there are checkpoints along the way...