Humans have four possible blood types (A, B, AB, and O) and these blood types are controlled by three alleles (IA, IB, i). The IA and IB alleles are codominant, but they are both dominant over the i allele. There was a court case where the identity of a child’s father was in dispute. There were three men who could have possibly fathered the child. Alfie, Beau and Charlie. The mother of the child has type A blood, Alfie has type A blood (one of his parents had Type AB blood and the other had Type A), Beau also has Type A blood (both of his parents were Type AB), and Charlie has Type AB blood. a. List the genotypes for all the possible phenotypes: Phenotype Genotype Blood Type A Blood Type B Blood Type AB Blood Type O b. Who is the father? c. Explain why you think your answer is correct. Use a Punnett square to show your reasoning
Humans have four possible blood types (A, B, AB, and O) and these blood types are controlled by three alleles (IA, IB, i). The IA and IB alleles are codominant, but they are both dominant over the i allele. There was a court case where the identity of a child’s father was in dispute. There were three men who could have possibly fathered the child. Alfie, Beau and Charlie. The mother of the child has type A blood, Alfie has type A blood (one of his parents had Type AB blood and the other had Type A), Beau also has Type A blood (both of his parents were Type AB), and Charlie has Type AB blood. a. List the genotypes for all the possible phenotypes: Phenotype Genotype Blood Type A Blood Type B Blood Type AB Blood Type O b. Who is the father? c. Explain why you think your answer is correct. Use a Punnett square to show your reasoning
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Humans have four possible blood types (A, B, AB, and O) and these blood types are controlled by three alleles (IA, IB, i). The IA and IB alleles are codominant, but they are both dominant over the i allele. There was a court case where the identity of a child’s father was in dispute. There were three men who could have possibly fathered the child. Alfie, Beau and Charlie. The mother of the child has type A blood, Alfie has type A blood (one of his parents had Type AB blood and the other had Type A), Beau also has Type A blood (both of his parents were Type AB), and Charlie has Type AB blood.
a. List the genotypes for all the possible
b. Who is the father?
c. Explain why you think your answer is correct. Use a Punnett square to show your reasoning
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