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pentapenguin pentapenguin
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Posts: 2392
Rep: 6 0
8 years ago
A disorder that occurs when a particular gene is injured on the X chromosome that results in mild to moderate mental retardation is known as ___________ syndrome.
a.  Tay-Sachs    c.  sickle-cell anemia
b.  Down syndrome   d.  fragile X
Textbook 
Child Development: A Topical Approach

Child Development: A Topical Approach


Edition: 1st
Author:
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danielle2018danielle2018
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Posts: 1912
8 years ago
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pentapenguin Author
wrote...
8 years ago
Your answer makes a lot more sense. I appreciate your insight.
wrote...
8 years ago
You are welcome.
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