A Researcher Is Studying a Newly Discovered Gene That Causes

Multiple Choice

A researcher is studying a newly discovered gene that causes increased body weight in domesticated chickens. In a mainland population, the frequency of the A₁ allele is 0.2, for this gene with two alleles. If 100 of these mainland chicken are transported on a ship to an isolated island with a population of 200 A₁A₁ chickens, 400 A₁A₂ chickens, and 400 A₂A₂ chickens, what would the frequency of the A₁ allele in the admixed population?

A) 0.764
B) 0.618
C) 0.745
D) 0.236
E) 0.382