A mutation introduces a new skin color in a grasshopper population. Which factor might determine whether the frequency of the new allele will increase over time?
a
how many other alleles are present
b
whether the mutation was caused by nature or by human intervention
c
whether the mutation makes some grasshoppers more fit to survive in their environment
d
how many phenotypes are present
c
whether the mutation makes some grasshoppers more fit to survive in their environment