Skip to main content
Pearson+ LogoPearson+ Logo
Ch. 24 - Cancer Genetics
Back
Previous problem
Next problem
All textbooksKlug 12th EditionCh. 24 - Cancer GeneticsProblem 9

Chapter 23, Problem 9

Define tumor-suppressor genes. Why is a mutated single copy of a tumor-suppressor gene expected to behave as a recessive gene?

Verified Solution
Video duration:
1m
This video solution was recommended by our tutors as helpful for the problem above.
300
views
Was this helpful?

Video transcript

Hey everyone. Let's take a look at this question together. Blank. Are the normal genes that control the timing of cell death or cell division, respectively. Let's recall what we've learned about the different types of genes to figure out which of the following genes are the normal genes that control the timing of cell death or cell division. When we know that when we're talking about a normal genes responsible for controlling the timing of cell death or cell division, meaning that they can shut down so division or they can direct cells to die. We're talking about tumor suppressor genes or answer choice B. The correct answer because those tumor suppressor genes are the ones that are responsible for controlling the timing of cell death or cell division. And we also know that it is not answer choice A. Or C. Because those DNA repair genes are the genes that correct errors that occurred during DNA replication and proto oncogene are the healthy genes responsible for helping the cells grow. So it is answer choice B tumor suppressor genes. I hope you found this video to be helpful. Thank you and goodbye.
Previous problemNext problem
Related Practice
Textbook Question

What is the difference between saying that cancer is inherited and saying that the predisposition to cancer is inherited?

254
views
Textbook Question

As a genetic counselor, you are asked to assess the risk for a couple with a family history of familial adenomatous polyposis (FAP) who are thinking about having children. Neither the husband nor the wife has colorectal cancer, but the husband has a sister with FAP. What is the probability that this couple will have a child with FAP? Are there any tests that you could recommend to help in this assessment?

328
views
Textbook Question

What is apoptosis, and under what circumstances do cells undergo this process?

321
views
Textbook Question

Describe the steps by which the TP53 gene responds to DNA damage and/or cellular stress to promote cell-cycle arrest and apoptosis. Given that TP53 is a recessive gene and is not located on the X chromosome, why would people who inherit just one mutant copy of a recessive tumor-suppressor gene be at higher risk of developing cancer than those without the recessive gene?

366
views
Textbook Question

Part of the Ras protein is associated with the plasma membrane, and part extends into the cytoplasm. How does the Ras protein transmit a signal from outside the cell into the cytoplasm? What happens in cases where the ras gene is mutated?

272
views
Textbook Question

If a cell suffers damage to its DNA while in S phase, how can this damage be repaired before the cell enters mitosis?

293
views