Question

6 multiple choice 1 point cells have regulatory mechanisms in place to ensure proper cell division. proto-oncogenes help to ________ cell division; however, when mutated, they become oncogenes and ________ cell division. a. suppress... over - stimulate b. promote... over - stimulate c. suppress... promote d. promote... suppress

Explanation:

Proto - oncogenes are normal genes that play a role in promoting cell division in a regulated way. When they mutate to become oncogenes, they over - stimulate cell division, which can lead to uncontrolled cell growth (like in cancer). So the first blank should be "Promote" and the second blank should be "over - stimulate", which corresponds to option B.

Answer:

B. Promote... over - stimulate