In C. elegans ced-9/ced-3 double mutants
A) 131 cells always die.
B) all 1090 cells die.
C) all 1090 cells live.
D) only 959 cells live.

Name: In C. elegans ced-9/ced-3 double mutants A) 131 cells always die. B) all 1090 cells die. C) all 1090 cells live. D) only 959 cells live.
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Question

In C. elegans ced-9/ced-3 double mutants 
A) 131 cells always die.
B) all 1090 cells die.
C) all 1090 cells live.
D) only 959 cells live.

Quizplus · Accepted Answer

In C. elegans, ced-9 is an anti-apoptotic gene and ced-3 is a pro-apoptotic gene. In ced-9/ced-3 double mutants, the pro-apoptotic function of ced-3 is suppressed by the loss of ced-9, resulting in all 1090 cells surviving.

In C. Elegans Ced-9/ced-3 Double Mutants