Pedigree information regarding the incidence of Tay-Sachs within a family is depicted above. The row below that indicates the genotypes of individuals II-1, II-2, and III-1 is Select one: a. II-1 II-2 III-1 Aa Aa aa b. II-1 II-2 III-1 XAY XAXa XAXa c. II-1 II-2 III-1 XAY XAXA XaXa d. II-1 II-2 III-1 AA aa Aa
Pedigree information regarding the incidence of Tay-Sachs within a family is depicted above. The row below that indicates the genotypes of individuals II-1, II-2, and III-1 is Select one: a. II-1 II-2 III-1 Aa Aa aa b. II-1 II-2 III-1 XAY XAXa XAXa c. II-1 II-2 III-1 XAY XAXA XaXa d. II-1 II-2 III-1 AA aa Aa
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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Question
A defective gene on chromosome 15 causes Tay-Sachs disease. It is a central nervous system neurodegenerative disease that most often affects infants, though older children and adults can have late-onset forms of the disease. The defective gene prevents the body from making a protein called hexosaminidase A. Without, hexosaminidase A, chemicals called gangliosides build up in the nerve cells of the brain, destroying brain cells.
Pedigree information regarding the incidence of Tay-Sachs within a family is depicted above. The row below that indicates the genotypes of individuals II-1, II-2, and III-1 is
Select one:
a.
II-1 | II-2 | III-1 |
---|---|---|
Aa | Aa | aa |
b.
II-1 | II-2 | III-1 |
---|---|---|
XAY | XAXa | XAXa |
c.
II-1 | II-2 | III-1 |
---|---|---|
XAY | XAXA | XaXa |
d.
II-1 | II-2 | III-1 |
---|---|---|
AA | aa | Aa |
![Pedigree of a Family with Tay-Sachs Disease
|
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II
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4](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb56cdac3-3e39-404c-b256-84affd8281d0%2F328b17cf-3808-4dd9-baff-a1567c8cf573%2F4o7sieo_processed.png&w=3840&q=75)
Transcribed Image Text:Pedigree of a Family with Tay-Sachs Disease
|
1
3
4
II
1
II
1 2
4
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