Question

What results in the formation of new phenotypes?

(a) Pre-existing helpful mutations

(b) Post-existing helpful mutations

(c) Pre-existing disadvantageous mutations

(d) Post-existing advantageous mutations

This question was addressed to me during an internship interview.

This interesting question is from Hardy-Weinberg Principle-2 in division Evolution of Biology – Class 12

Answer 1

Right choice is (a) Pre-existing helpful mutations

The explanation is: According to microbial experiments, pre-existing helpful of advantageous mutations results in the formation of new phenotypes. This finally results in a process called Speciation. Mutation also has a relation with creating new phenotypes.