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Home Q & A Board Science-Related Homework Help Psychology Developmental Psychology
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genderma genderma
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8 years ago
The number one inherited cause of mental retardation is
A) Down syndrome.
B) Tay-Sachs disease.
C) fragile X syndrome
D) Turner syndrome.
Textbook 
The World of Children

The World of Children


Edition: 3rd
Author:
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yariyari
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8 years ago
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genderma Author
wrote...
#2
8 years ago
Merci beaucoup!
wrote...
#3
8 years ago
Don't mention it!
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