Questions about Cell Biology. (Mitosos.)?

Question

1. What regulates and controls the cell cycle?

2. What are the 3 cell cycle "checkpoints?"

3. What are the 4 differences between normal cells and cancer cells.

I can't find any answers to these in my Biology and Zoology textbooks.

Can anyone give a link to a site that explains these?

Thanks.

Answer 1

try those.....

I'm racking my brains here, I wouldn't mind but I aced this last year in my finals....just goes to show alcohol does kill brain cells

Answer 2

need this for bio class?

Answer 3

1. The cell cycle is controlled by proteins in the cytoplasm.

2. * G1 checkpoint for DNA damage before S phase

    * Checkpoint for successful DNA replication during S phase

   * spindle checkpoints for proper spindle function

3.  * cancer cells don't stop reproducing

   * cancer cells don't obey signals from other cells

  * cancer cells do not stick together

* cancer cells do not become specialized