A Fruit Fly Population Has a Gene with Two Alleles

question 52

Multiple Choice

A fruit fly population has a gene with two alleles, A1 and A2. Tests show that 70% of the gametes produced in the population contain the A1 allele. If the population is in Hardy-Weinberg equilibrium, what proportion of the flies carry both A1 and A2?

• A) 0.7
• B) 0.49
• C) 0.21
• D) 0.42
• E) 0.09

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