What is the phenotypic ratio for this cross? Be sure to write out phenotypes. Phenylketonuria is an autosomal recessive disorder (see section V) that causes mental impairment and reduced pigmentation of hair and skin. A woman with phenylketonuria and a man heterozygous for phenylketonuria have children. Female’s genotype: Male’s genotype: a. including a Punnett square. b. What is the probability of a child with phenylketonuria? Alisha has blood type B. Her mother has blood type O. Alisha marries Jared, who has blood type AB. a. What is Alisha’s genotype? b. What is Jared’s genotype? c. Using a Punnett square, determine the probability of the couple having a child with the following blood type B? blood type O? blood type AB? blood type A?