Which of the following proteins would you expect to be a coded for by a proto-oncogene?
A)a growth factor receptor
B)a DNA repair protein
C)a protein involved with the G1 checkpoint
D)a caspase
E)a DNA replication protein

Question

Quizplus · Accepted Answer

Proto-oncogenes code for proteins that promote cell growth, division, and survival. Therefore, a growth factor receptor, which plays a role in promoting cell growth and division, would likely be coded for by a proto-oncogene. DNA repair proteins, checkpoint proteins, and caspases, on the other hand, play roles in preventing cell growth and promoting apoptosis, and therefore would not be expected to be coded for by proto-oncogenes. DNA replication proteins are necessary for cell growth and division, but not necessarily oncogenic in nature.

Which of the Following Proteins Would You Expect to Be