In corn, purple kernels are dominant to yellow. A random sample of 100 kernels is taken from a popul

Question

In corn, purple kernels are dominant to yellow. A random sample of 100 kernels is taken from a population in Hardy-Weinberg equilibrium. It is found that 16 kernels are yellow and 84 are purple. What is the percentage of yellow allele in the population?\

Professor PC Thomas Classes · Answer

(c): Since 16 out of 100 kernals are yellow, hence, the frequency of the homozygous recessive genotype (aa) is 0.16 . The frequency of the recessive allele is the square root of 0.16 which is 0.4 . Therefore, the percentage of the yellow alleles in the populations is $40 \%$.