A homozygous recessive allele, aa, is responsible for albinism. Humans can exhibit this phenotype. In eachof the following cases, determine the possible genotypes of the mother and father, and of their children:(a) Both parents have normal phenotypes; some of their children are albino and others are unaffected:(b) Both parents are albino and have only albino children:(c) The woman is unaffected, the man is albino, and they have one albino child and three unaffected children:at a busy hospital. The son of the first couple has hemophilia, a recessive, X-linkedTwo mothers give birth to sordisease. Neither parent from couple #1 has the disease. The second couple has an unaffected son, despite the factthat the father has hemophilia. The two couples challenge the hospital in court, claiming their babies must have beerswapped at birth. You must advise as to whether or not the sons could have been swapped. What would you say?5. In a dispute over parentage, the mother of a child with bloodgroup O identifies a male with blood group A as the father.The mother is blood group B. Draw Punnett squares to showpossible genotype/phenotype outcomes to determine if themale is the father and the reasons (if any) for further dispute:

Name: A homozygous recessive allele, aa, is responsible for albinism. Human
Uploaded: 2024-03-20T06:43:04.000Z
Channel: Bartleby
Description: A homozygous recessive allele, aa, is responsible for albinism. Humans can exhibit this phenotype. In eachof the following cases, determine the possible genotypes of the mother and father, and of their children:(a) Both parents have normal phenotype