If an adult person has a faulty version of the human analogue 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 will occur.

Question

Quizplus · Accepted Answer

Ced-4 in nematodes is involved in the activation of apoptosis, or programmed cell death. The human analogue, Apaf-1, also plays a role in apoptosis. Therefore, a faulty version of this gene in humans could result in insufficient apoptosis and potentially lead to the formation of cancer. Option A is unlikely as a developmental pathway found in nematodes would not necessarily be activated in humans. Option C is incorrect as pore formation in mitochondrial membranes is not directly related to Ced-4/Apaf-1 function. Option D is also unrelated as skin loss is not a known result of Ced-4/Apaf-1 dysfunction.

If an Adult Person Has a Faulty Version of the Human