Which molecules are connected by hydrogen bonds?

Normal genotype: AA
sickle-cell genotype: aa   ( It's a recessive trait)
heterozygote's genotype: Aa

In  the Hardy-Weinberg Equilibrium equation, the recessive allele is represented by q².
The proportion of the allele for the sickle cell is 0.10, so we only need to do the square rote to determine the frequency of the allele: √0.10
0,32