Complex Population Questions with calculations

The M and N factors are glycoproteins that are found on the surface of red blood cells. Unlike other types of red blood cell antigens, the M and N factors do not cause antibody reactions in human blood transfusions. People with type M blood are homozygous for the M allele, and people with type N blood are homozygous for the N allele. Heterozygous individuals have type MN blood. In a study of a population of Inuit living in the Northwest Territories, 640 people had blood type M, 320 had blood type MN, and 40 had blood type N. [b]Calculate the frequency of the genotypes in the population studied. Show all of the steps to your solutions. [/b]

Post Merge: 7 years ago

And if I could have some help solving these questions as well..

In a randomly mating population of mice, 5 out of every  100 mice born have white fur, a recessive trait. Calculate the heterozygous frequency for the population.

In a randomly mating population of mice, 3 out of every  100 mice born have white fur, a recessive trait. Calculate the homozygous dominant frequency of the population.