What is the frequency of the genotype AA at the beginning of the second generation if the frequency of allele A in the initial generation was 0.7, the relative fitness of the AA genotype is 0.5, and the mean fitness of the population of the three possible genotypes (AA, Aa, and aa) is 0.9?
Answers
Answer:
The frequency of the "aa" genotype. Answer: 36%, as given in the problem itself. The frequency of the "a" allele. Answer: The frequency of aa is 36%, which means that q2 = 0.36, by definition.
Answer:
Explanation:
the answer is Freq (Redheads) = 25/750 = 0.033 or 3.3 percent
Probability of a Redhead = 25/750, or 3.3 percentUnder H-W, if p = freq(A) , then p2 = freq(AA), hence p2 =0.25 or p = 0.5.
If the genotypes AA, Aa, and aa have frequencies 0.5, 0.25, and 0.25 (respectively), what are p = freq(A)? q = freq (a)? After a single generation of random mating, what is the expected frequency of AA? of Aa? of aa?
p = freq(AA) + (1/2) freq(Aa) = 0.5 + (1/2)(0.25) = 0.625.
q = 1-p = 0.375
freq(AA) = p2 = 0.6252 = 0.391
freq(Aa) = 2pq = 2*0.625*0.375 = 0.469
freq(aa) = q2 = 0.3752 = 0.140