A man who is a carrier of a translocated 15/21 chromosome marries a genotypically normal woman. (1). Show the possible gametes that will be formed by this man if the translocated 15/21 chromosome synapses with chromosome 21 at Prophase I. (2). What is the probability that the first child of the couple will be a phenotypically normal girl? (3). What is the probability that the first child of the couple will be a genetically normal boy?

Human Heredity: Principles and Issues (MindTap Course List)
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Chapter6: Cytogenetics: Karyotypes And Chromosome Aberrations
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Problem 16QP: Assume that a meiotic-nondisjunction event causes trisomy 8 in a newborn. If two of the three copies...
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A man who is a carrier of a translocated 15/21 chromosome marries a genotypically normal woman.

(1). Show the possible gametes that will be formed by this man if the translocated 15/21 chromosome synapses with chromosome 21 at Prophase I.

(2). What is the probability that the first child of the couple will be a phenotypically normal girl?

(3). What is the probability that the first child of the couple will be a genetically normal boy?

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