Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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- (a) Determine the probable mode of inheritance for the trait shown in the affected individuals in the ff. pedigree by answering the ff. questions. Assume the condition is caused by a single gene.
a. Y-linked inheritance can be excluded at a glance. Apart from the four choices below, what two other mechanisms of inheritance can definitely be excluded AT A GLANCE? Why?
b. For each mechanism of inheritance listed below, provide basis that the mechanism fits or does not fit by showing the genotypes of each individual (e.g., provide the genotypes of each individual if it follows X-linked dominant; provide the genotypes of each individual if it follows X-linked recessive, etc.). If the mode of inheritance does not fit, emphasize the individuals with genotypes inconsistent to the mode of inheritance.
- X-linked dominant
- X-linked recessive
- Sex-influenced dominant in males, recessive in females
- Autosomal recessive
C. What mode of inheritance is most likely for this characteristic?
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