Two large populations of the same species each mate at random. Population X has 600 individuals and the frequency of a recessive allele a is 0.10. Population Y has 400 individuals and the frequency of a is 0.40. Before the next breeding season all 1000 individuals mix completely and breed at random as one population. The trait is autosomal with complete dominance. What fraction of the next generation is expected to show the recessive trait?

BiologyHardHigh School (11–12)Heredity and Evolution › Evolution Olympiad

Two large populations of the same species each mate at random. Population X has $600$ individuals and the frequency of a recessive allele $a$ is $0.10$ . Population Y has $400$ individuals and the frequency of $a$ is $0.40$ . Before the next breeding season all $1000$ individuals mix completely and breed at random as one population. The trait is autosomal with complete dominance. What fraction of the next generation is expected to show the recessive trait?

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