What is the frequency of the recessive (attached ear lobe) allele in the Chinese population?
In humans, unattached earlobes are dominant, and attached earlobes are recessive. In China, it is reported that 64% of the population exhibit unattached earlobes.
As 64% had unattached, p = 0.64 so q= 0.36. The frequency of the recessive allele consists of the recessive homozygous and the heterozygous group. So to find out the total, sub those values into the 2pq+q^2 to get 0.6.
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