d The pedigree above shows inheritance of an X-linked recessive disorder. Use this pedigree to answer questions X-Y below. 22) If individual II-2 marries an unaffected male, what are the chances they will have an affected son? a) 1/2 b) 1/4 c) 1/6 d) 1/8 e) 0 23) In generation III, how many individuals' genotypes are known for certain? a) 5 b) 3 c) 4 d) 2 e) 0
d The pedigree above shows inheritance of an X-linked recessive disorder. Use this pedigree to answer questions X-Y below. 22) If individual II-2 marries an unaffected male, what are the chances they will have an affected son? a) 1/2 b) 1/4 c) 1/6 d) 1/8 e) 0 23) In generation III, how many individuals' genotypes are known for certain? a) 5 b) 3 c) 4 d) 2 e) 0
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Please answer both questions in detail. Correct answers are highlighted.
Transcribed Image Text:**Pedigree Analysis of X-linked Recessive Disorder**
The diagram above is a pedigree chart illustrating the inheritance pattern of an X-linked recessive disorder. Squares represent males, and circles represent females. Filled symbols indicate affected individuals, while open symbols indicate unaffected individuals.
**Questions:**
**22)** If individual II-2 marries an unaffected male, what are the chances they will have an affected son?
a) 1/2
b) 1/4
c) 1/6
d) 1/8
e) 0
*Correct answer: d) 1/8*
**23)** In generation III, how many individuals' genotypes are known for certain?
a) 5
b) 3
c) 4
d) 2
e) 0
*Correct answer: a) 5*
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