Individuals carrying at least one recessive allele compromise 51% of the population. What is the percentage of all three possible genotypes? (AA,Aa,aa)
Possible genotypes; aa, Aa, AA
If 51% of population have atleast one recessive allele then; aa+Aa = 51%= 0.51
This means that- AA (p squared) = 1.0-0.51
= 0.49
(so p squared = 0.49)
If p squared = 0.49
p = 0.7
p +q = 1.0
So q = 0.3
q squared = 0.09
Percenatges are; AA (p squared) = 0.49 x 100 = 49%
Aa (2PQ) = (2x0.7x0.3) x100 = 42%
aa (q squared) = 0.09 x 100 =9%