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. If individuals II-1 and II-2 have another child, what is the probability they will have a child affected by Tay-Sachs? Select one: a. 0.00 b. 0.25 c. 0.50 d. 1.00
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. If individuals II-1 and II-2 have another child, what is the probability they will have a child affected by Tay-Sachs? Select one: a. 0.00 b. 0.25 c. 0.50 d. 1.00
Biology Today and Tomorrow without Physiology (MindTap Course List)
5th Edition
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Author:Cecie Starr, Christine Evers, Lisa Starr
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Chapter9: Patterns Of Inheritance
Section: Chapter Questions
Problem 13SQ
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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.
If individuals II-1 and II-2 have another child, what is the probability they will have a child affected by Tay-Sachs?
Select one:
a. 0.00
b. 0.25
c. 0.50
d. 1.00
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