Question

(Choose as many as you deem correct)

If two mutations exhibit additive genetic interaction, it suggests that

a) The two genes respectively affected by the mutations work in the same pathway. No

b) The two genes may regulate one another. Not sure

c) The two mutant phenotypes show in the double mutant.

d) The two genes act independently of each other. Pretty sure

Answer 1

If two mutations exhibit additive genetic interaction, it suggests that:
d) The two genes act independently of each other. - hence they don't interfere with each other.
c) The two mutant phenotypes show in the double mutant - since they will not be able to complement each other.

The two genes respectively affected by the mutations work in the same pathway - Contradictory to chosen answer
The two genes may regulate one another - Contradictory to chosen answer