d. What is the risk (probability) that the fetus is affected? Show solution. Express final answer as a fraction in lowest terms.

Human Anatomy & Physiology (11th Edition)
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Author:Elaine N. Marieb, Katja N. Hoehn
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Chapter1: The Human Body: An Orientation
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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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answer only subpart number (d) 

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b. What is the most likely pattern of inheritance for this condition?
c. Justify your answer in letter (b).
d. What is the risk (probability) that the fetus is affected? Show solution. Express final answer as
a fraction in lowest terms.
Amniocentesis has to be performed in order to determine the sex of the fetus. What is the
risk that the child will be affected if the fetus is female? If the fetus is male? Show solution.
Female:
Male:
Transcribed Image Text:b. What is the most likely pattern of inheritance for this condition? c. Justify your answer in letter (b). d. What is the risk (probability) that the fetus is affected? Show solution. Express final answer as a fraction in lowest terms. Amniocentesis has to be performed in order to determine the sex of the fetus. What is the risk that the child will be affected if the fetus is female? If the fetus is male? Show solution. Female: Male:
2. Suppose a couple brought to you their 8-year old boy with progressive muscle weakness, and
difficultyin motor skills resulting to awkward manner of walking and running. The boy's 15-year old
sister and 11-year old brother appear to be unaffected. They have a normal father and a normal
pregnant mother. The mother had a brother who died at 26 yrs. of age with similar findings that
seemed to worsen with age. The mother also has a sister with the same findings but it only
manifested during her 28th year. Her sister, who married an unaffected man, has two affected sons
and a normal daughter. You suspect a diagnosis of Duchenne Muscular Dystrophy (DMD).
a. Draw the pedigree of this family. Follow protocols in making a pedigree. Provide the
genotypeof all individuals in the pedigree. Please provide also the gene notation.
ALE
Transcribed Image Text:2. Suppose a couple brought to you their 8-year old boy with progressive muscle weakness, and difficultyin motor skills resulting to awkward manner of walking and running. The boy's 15-year old sister and 11-year old brother appear to be unaffected. They have a normal father and a normal pregnant mother. The mother had a brother who died at 26 yrs. of age with similar findings that seemed to worsen with age. The mother also has a sister with the same findings but it only manifested during her 28th year. Her sister, who married an unaffected man, has two affected sons and a normal daughter. You suspect a diagnosis of Duchenne Muscular Dystrophy (DMD). a. Draw the pedigree of this family. Follow protocols in making a pedigree. Provide the genotypeof all individuals in the pedigree. Please provide also the gene notation. ALE
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