Could you briefly describe how some cancers are believed to be caused by mutations?

Question

thanks.

Answer 1

Sometimes mutations disrupt the cell's ability to regulate the rate of cell division. They might interfere with the enzymes that do the regulation - making too many of these enzymes, making too few of the enzymes, or making these enzymes at the wrong time. Any of these can cause cells to reproduce at a rate that is out of control - and that's cancer.

Answer 2

Cancer is essentially cells who no longer behave like normal cells. they grow too big and too fast, they ignore signals that state that they are squished next to another (normal cells stop growing when they come close to or in contact with other cells), they dont stay where they are supposed to, they divide more often that they are supposed to and they dont die when they should. when i say should, i mean that there are biological and chemical signals that control all of this. a mutation can occur in any of these stages and lead to cancer. that is, a mutation in the telemores in the cell can mean that it continues to live and reproduce even after it should have died, leading to cancer.

Answer 3

The cell cycle has "checkpoints" to avoid abnormal cell growth. These are the G1, G2 and M checkpoints.

We undergo mutations all the time. Mutations are abnormalities. Thus, abnormal cell growth, which ignore the checkpoints of the cell cycle, produce abnormal cells. Cells that don't have the right number of chromosomes, etc are produced. This production of abnormal cells is referred to as a cancer.

Hence, since mutations are abnormalities, they can produce abnormal cells (cancer).

Answer 4

cancer is caused by changes in cells, changes in cells can be brought on by mutations or the cells can mutate themselves. brief enough?