Butterflies use taste receptors to detect the presence of different foods.The receptors are encoded by genes in a gene family.Which circumstance would most likely lead to the evolution of pseudogenes in this gene family?
A) A shift from feeding on one species to feeding on many
B) A shift from feeding on many species to feeding on just one
C) The presence of a new predator
D) Selection for faster development
E) Selection for slower development

Question

Quizplus · Accepted Answer

If there is a shift from feeding on many species to feeding on just one, it is likely that the taste receptors for the no-longer consumed foods will gradually become vestigial and eventually turn into pseudogenes. This is because mutations that render the receptors non-functional will no longer be selected against.

Butterflies Use Taste Receptors to Detect the Presence of Different