The allele for the hair pattern called widows peak is dominant over the allele for no widows peak. In a population of 1000 individuals, 510 show the dominant phenotype. How many individuals would you expect of each of the possible three genotypes for this trait?

Question

Jase Washington

Biology

16 March, 10:18

The allele for the hair pattern called widows peak is dominant over the allele for no widows peak. In a population of 1000 individuals, 510 show the dominant phenotype. How many individuals would you expect of each of the possible three genotypes for this trait?

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Elian Brennan · Answer 1

510 individuals have a widows peak and there would be 2 possibilities. Everyone with a widows peak would have either the WW or Ww genotype. There would be a 25% chance of WW and a 25% chance of Ww. The other 490 people do not show the dominant phenotype meaning all of them share the genotype ww. This means there is a 50% chance of the ww genotype.

WW: 25% Chance

Ww: 25% Chance

ww: 50% Chance