Antigens on red blood cells are hereditary traits that allow blood to be typed in different ways.One system is based on a gene with two alleles, M and N.If the frequency of the M allele in a population is 0.4, then according to the Hardy-Weinberg rule, the expected frequency of the heterozygous MN genotype is ___.
A)0.16
B)0.24
C)0.36
D)0.48

Question

Quizplus · Accepted Answer

The Hardy-Weinberg principle states that the frequency of the heterozygous genotype (MN) is calculated as 2pq, where p is the frequency of the M allele and q is the frequency of the N allele. Given p = 0.4, q = 1 - p = 0.6, the frequency of the MN genotype is 2(0.4)(0.6) = 0.48.

Antigens on Red Blood Cells Are Hereditary Traits That Allow