Population of town X has 5000 inhabitants and is under Hardy-Weinberg equilibrium for
distribution of ABO blood group system alleles A, B, and O. it is know that frequency of allele
A is two times higher than frequency of allele B, and also there are 2450 inhabitants with
Blood group 0. how many people have AB blood group in town X?
A) 50
B) 100
C)200
D) 2550