A young woman is worried about having a child because her mother's only sister had a son with Duchenne muscular dystrophy (DMD). The young woman has no brothers or sisters. (DMD is a rare X-linked recessive disorder.) (a)Draw the relevant parts of the pedigree of the family described above. Be sure to include the grandmother, the other three women mentioned, and all their spouses. Fill in genotypes according to the information in hand.  (b)Calculate the probability that the young woman's first child will have DMD.

Human Biology (MindTap Course List)
11th Edition
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cecie Starr, Beverly McMillan
Chapter20: Chromosomes And Human Genetics
Section: Chapter Questions
Problem 7CT: The following pedigree shows the pattern of inheritance of red-green color blindness in a family....
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A young woman is worried about having a child because her mother's only sister had a son with Duchenne muscular dystrophy (DMD). The young woman has no brothers or sisters. (DMD is a rare X-linked recessive disorder.)

(a)Draw the relevant parts of the pedigree of the family described above. Be sure to include the grandmother, the other three women mentioned, and all their spouses. Fill in genotypes according to the information in hand.  (b)Calculate the probability that the young woman's first child will have DMD. 

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