Suppose that the fitness of A1A110 A1A212 A2A212 If you star

Suppose that the fitness of A1A1=1.0, A1A2=1.2, A2A2=1.2. If you start with a frequency of A1 of 10% what should happen over time in a large population?

a.) A1 will move to a frequency between 50% and 99% and stay there indefinitely

b.) A2 will increase in frequency and go to fixation

c.) A1 will increase in frequency and go to fixation

d.) A1 will stay at a frequency of 10%

e.) A2 will move to a frequency between 50% and 99% and stay there indefinitely

Solution

d.A1 will stay at a frequency of 10%

A1 and A2 form a beneficial allele, and is dominant so it produces A2 allele.