Physicians sometimes use a blood type called MN in their diagnoses. It is similar to the ABO blood type discussed in Chapter 13 but has only two codominant alleles ( M and N ). In testing all 1-year-old children in a small population, you find genotype frequencies of MM = 0.25, MN = 0.5, and NN = 0.25. Using the Hardy-Weinberg what are the allele frequency of M and N?