11. Blood type is controlled by a gene with multiple alleles. A produces type A blood. B codes for type B blood. A and B are codominant so a heterozygote has type AB blood. The O allele is recessive to both A and B and produces type O blood. A. What are the possible genotypes of a man with type A blood? AA or AO B. What are the possible genotypes of a man with type B blood? BB or BO C. Can a man with type B blood be the father of a baby with type O blood? Why or why not? Explain your answer. If the man has blood group B than it's genotype can be BB or BO. If the man has BO blood group and the woman he marries is either AO,BO or OO blood genotype than only the man can have a child with O blood group type. Because the child will receive O allele from both the parents as O blood group type is only dominant when it's in pair because it's a recessive allele.
11. Blood type is controlled by a gene with multiple alleles. A produces type A blood. B codes for type B blood. A and B are codominant so a heterozygote has type AB blood. The O allele is recessive to both A and B and produces type O blood.
A. What are the possible genotypes of a man with type A blood? AA or AO
B. What are the possible genotypes of a man with type B blood? BB or BO
C. Can a man with type B blood be the father of a baby with type O blood? Why or why not? Explain your answer.
If the man has blood group B than it's genotype can be BB or BO. If the man has BO blood group and the woman he marries is either AO,BO or OO blood genotype than only the man can have a child with O blood group type. Because the child will receive O allele from both the parents as O blood group type is only dominant when it's in pair because it's a recessive allele.
D. A man with type A blood marries a woman with type B blood. What blood types are possible for their children? Explain your answer.
E. A man with type O blood is in a car accident and has to receive a transfusion at the hospital. What types of blood can he receive?
F. In the Charlie Chaplin paternity case of the 1940s, a young woman sued Chaplin for child support, claiming he was the father of her child. Chaplin’s blood was type O, the mother was type A and the baby was type B. Could Charlie Chaplin have been the father of the baby? Explain your answer.
G. If a person has a blood type that matches the blood of a baby or matches the blood found at the scene of a crime, does that prove he is the father of the baby or the person who committed the crime? Explain your answer.
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