If an adult person has a faulty version of the human analog to ced-4 of the nematode, which of the following is most likely to result?
A) activation of a developmental pathway found in the worm but not in humans
B) a form of cancer in which there is insufficient apoptosis
C) formation of molecular pores in the mitochondrial outer membrane
D) excess skin loss

Question

Quizplus · Accepted Answer

Ced-4 is involved in the regulation of apoptosis, or programmed cell death. If an adult person has a faulty version of the human analog to ced-4, it is most likely that there will be insufficient apoptosis, which can lead to the formation of cancer. Choice A is unlikely because developmental pathways are highly conserved across different species, so a pathway found in the worm would also be present in humans. Choice C and D are not related to the function of ced-4.

If an Adult Person Has a Faulty Version of the Human