Question

If p = .9, what is the frequency of the heterozygote? .81+(2)(.9)(.1) + (.01) .10 .81 + .18 .18

Answer 1

Write down the Punnett square to find the frequencies:

      R(.9)       r(.1)
R   0.81          0.09
r    0.09          0.01

The answer choices given are confusing.  I'll let you figure out the choices.