Question

The p53 gene is a tumor that suppresses a protein commonly called protein 53. The gene is important in regulating the cell cycle and suppressing tumors. Which of the following is an example of a cellular response to a mutation to the p53 gene?

A mutation to the p53 gene will result in excessive cell growth and division.
A mutation to the p53 gene will not cause any changes to the signal transduction pathway.
A mutation to the p53 gene will immediately stop the signal pathway.
A mutation to the p53 gene will change the relay molecules but will elicit the same response.

Answer 1

Answer:

The first option is correct;

A mutation to the p53 gene will result in excessive cell growth and division.

Answer 2

Answer:

A mutation to the p53 gene will result in excessive cell growth and division.

Explanation:

If there is a mutation to the p53 gene this mutation would result in an altered p53 protein and it won't be able to regulate cell proliferation effectively. This will make it unable to trigger apoptosis in cells that have damaged DNA. Over time as a result damage to the DNA will accumulate in these cells and such cells will continue to divide uncontrollably causing tumor growth.