0.7
0.4
0.5
0.6
According to Hardy-Weinberg equilibrium, the genetic variation in a population will remain constant from one generation to the next in the absence of disturbing factors.
Equation: p² + 2pq + q² = 1
where,
p² is the frequency of homozygous genotype AA
q² is the frequency of genotype aa
2pq is the frequency of genotype Aa
There are 1000 individuals, out of which 360 belong to genotype AA.
p² = 360/1000 = 0.36
Then p = √0.36 = 0.6.
So, the correct answer is '0.6'.