Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Duchenne muscular dystrophy is an inheritable disorder that results in muscle weakness, leading to walking and breathing difficulties and heart disease.
Which of the following is a valid conclusion about the Duchenne muscular dystrophy pedigree shown above?
Which of the following is a valid conclusion about the Duchenne muscular dystrophy pedigree shown above?
Select one:
a. Only individuals I-2 and II-4 are confirmed carriers of the Duchenne muscular dystrophy allele.
b. Individual II-3 can only pass on the Duchenne muscular dystrophy allele to individuals III-2 and III-4.
c. Without further evidence, the genotypes of individuals II-2 and III-2 cannot be determined.
d. Only individuals I-1 and II-3 are confirmed carriers of the Duchenne muscular dystrophy allele.
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