Which of the following is true concerning cancer cells?
A)They do not exhibit density-dependent inhibition when growing in culture.
B)When they stop dividing, they do so at random points in the cell cycle.
C)They are not subject to cell cycle controls.
D)When they stop dividing, they do so at random points in the cell cycle, and they are not subject to cell cycle controls.
E)When they stop dividing, they do so at random points in the cell cycle; they are not subject to cell cycle controls; and they do not exhibit density-dependent inhibition when grown in culture.

Question

Quizplus · Accepted Answer

Cancer cells do not follow the normal cell cycle controls that regulate cell division, and they can grow uncontrollably, dividing at random points in the cell cycle. They also fail to exhibit density-dependent inhibition, meaning that they continue to grow and divide even when there are too many cells in a given area. Therefore, the best choice is E, which encompasses all of these characteristics.

Which of the Following Is True Concerning Cancer Cells