In this chapter, we focused on cancer as a genetic disease, with an emphasis on the relationship between cancer, the cell cycle, and DNA damage, as well as on the multiple steps that lead to cancer. At the same time, we found many opportunities to consider the methods and reasoning by which much of this information was acquired. From the explanations given in the chapter,

How do we know that cancer cells contain defects in DNA repair?

Video transcript

Hi everyone. Let's take a look at this practice problem. Together, identify the cellular function that is affected in cancer. Recall that cancer affects multiple cellular functions, not just one. So let's take a look at what our options are. The first is a A. Apoptosis and this is the ability of a cell to program its death. So it's programmed cell death and cancer does affect this and by doing so it increases the time a cell is alive. So the more mutations can occur as well as further spread by cell division. So A. Is a correct option. Next we've got B repair of DNA damage a cell that would lack this ability and be affected by cancer would accrue a lot more mutations and this is also a function of cancer. Then we have C. Cell division and in cell division cancer is able to spread by uncontrolled cell division. So you get uncontrollable spread of the cancer cells. So C. Is also true. So A B and C. Are true. So our answer is D. All of the above. Alright, everyone. I hope you found this helpful. And I'll see you soon for the next practice problem