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,...
Related questions
Question
Huntington's Chorea is an autosomal dominant trait. Below is a pedigree of a family with Huntington's disease. If III-6 had a child with a healthy individual, what would be the chance they would have a child with Huntington's?
Group of answer choices
a 100%
b 25%
c 50%
d 0%

Transcribed Image Text:1
2
II
1
2
3
4
5
6
7
8
III
1 2 3 4 5 6
7 8
Expert Solution

introduction
Huntington's disease is an autosomal dominant disease which means only one allele would suffice to produce a diseased child.
Let Ad be the diseased allele while A be the normal allele.
III 6 is born to a normal and an affected parent which means he had inherited only one diseased allele. So, his genotype will be Ad A
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