Use the following information and the key to answer questions
6-8.

Trees can have either scaly, rough or smooth bark. Trees homozygous
for the ‘S’ allele of the bark texture gene have scaly bark, Ss
heterozygotes have rough bark, while ss individuals have smooth
bark. 1000 trees were scored for bark phenotype in a forest that
was recently partially burned (i.e. the population is not in
Hardy-Weinberg equilibrium). 642 trees with scaly bark are
observed, 348 trees have rough bark, and 10 have smooth bark.

a. 0.100

b. 0.184

c. 0.300

d. 0.816

Q6. What is the frequency of the S allele in this
population?

Q7. What is the frequency of the s allele in this
population?

Q8. Assuming random mating, what will be the expected frequency
of heterozygotes in the next generation?