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Phenylketonuria (PKU) is a disorder caused by a recessive allele. Two carrier individuals have progeny. Answer the following questions in order and show solutions whenever relevant. Box or highlight your final answers. a. Indicate the gene notation. b. Derive the expected genotypic and phenotypic ratios. c. If they have a normal child, what is the probability that he or she will be heterozygous?

Phenylketonuria (PKU) is a disorder caused by a recessive allele. Two carrier individuals have progeny. Answer the following questions in order and show solutions whenever relevant. Box or highlight your final answers. a. Indicate the gene notation. b. Derive the expected genotypic and phenotypic ratios. c. If they have a normal child, what is the probability that he or she will be heterozygous?

Human Anatomy & Physiology (11th Edition)
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
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Phenylketonuria (PKU) is a disorder caused by a recessive allele. Two carrier individuals have progeny. Answer the following questions in order and show solutions whenever relevant. Box or highlight your final answers. a. Indicate the gene notation. b. Derive the expected genotypic and phenotypic ratios. c. If they have a normal child, what is the probability that he or she will be heterozygous? d. If they have three children, what is the probability of having 2 affected children and one normal child?
Transcribed Image Text:Phenylketonuria (PKU) is a disorder caused by a recessive allele. Two carrier individuals have progeny. Answer the following questions in order and show solutions whenever relevant. Box or highlight your final answers. a. Indicate the gene notation. b. Derive the expected genotypic and phenotypic ratios. c. If they have a normal child, what is the probability that he or she will be heterozygous? d. If they have three children, what is the probability of having 2 affected children and one normal child?
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