Frequency of daltonism (XR) in males is 0.08

[moctest]

Hi Guys,

 

Please help with this problem:

 

 

The frequency of daltonism (XR) in males is 0.08

a) Calculate frequency of heterozygous females.

b) What is the probability of mating of affected male with non-related heterozygous woman?

c) What is the frequency of mating of affected male with heterozygous woman in the population?

 

My Solution:

a) 2pq = 2 (0.92) (0.08) = 0.1472

b) 2pq x q = (0.1472) (0.08) = 0.011776

c) I don't know what's the difference between (b) and © ???