a population is composed of 40 RR individuals and 60 Rr indi

a population is composed of 40% RR individuals and 60% Rr individuals:

A) What is the frequency of the r allele? (Show your math)

B) Does this population have the geneotype frequencies expected under Hardy Weinberg equilibrium?

Solution

Answer:

Dominant allele = R

Recessive allele = r

A). Let\'s say there are 100 individuals, with a total of 200 alleles.
60 are RR = 120 R alleles
40 are Rr = 40 R alleles + 40 r alleles
Totaal R alleles = 120 + 40 = 160
r alleles = 40
Freq(R) = 160/200 = 0.8 (answer)
Freq(r) = 40/200 = 0.2 (answer)

B). The rr population is not there, so the population does not in Hardy Weinberg equilibrium