The figure shows the allele frequency trajectories for two populations starting from two different initial frequencies. Which evolutionary processes could produce this result?
A) underdominance or positive frequency-dependent selection
B) underdominance or overdominance
C) negative frequency-dependent selection or mutation-selection balance
D) directional selection only

Question

The figure shows the allele frequency trajectories for two populations starting from two different initial frequencies. Which evolutionary processes could produce this result? 
A) underdominance or positive frequency-dependent selection 
B) underdominance or overdominance 
C) negative frequency-dependent selection or mutation-selection balance 
D) directional selection only

Quizplus · Accepted Answer

The Answer is A

The Figure Shows the Allele Frequency Trajectories for Two Populations