A survey of 1210 people in Iceland finds 194 individuals are

A survey of 1210 people in Iceland finds 194 individuals are blood groups MM, 581 are MN, and 436 are NN. What is p (frequency of M)?

1210 people in Iceland finds 194 individuals are blood groups --> MM

581 ---> MN,

436 ---> NN

MM (p²) = 194/1210 = 0.16

MN(2pq) = 581/1210 = 0.48

NN(q²) = 436/1210 = 0.36

ALLELE FREQUENCIES:

Now calculate the frequencies of the “M” and “N” alleles in this population:

• p = f(MM)+1/2f(MN) = Frequency M

• q = f(NN)+1/2f(Mn) = Frequency N

Freq of M = p = p² + 1/2 (2pq) = 0.16 + 1/2 (0.48) = 0.16 + 0.24 = 0.4