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Home Q & A Board Science-Related Homework Help Psychology Developmental Psychology
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Kellman Kellman
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8 years ago
Down syndrome is also known as trisomy-21 because individuals with Down syndrome ____.
a.   have three distinct facial features by the 21st week of pregnancy
b.   show three distinct temperament patterns by the 21st week of infancy
c.   have a third chromosome on the 21st pair
d.   have 21 genes on the 3rd pair of chromosomes
Textbook 
Child Development: A Cultural Approach

Child Development: A Cultural Approach


Edition: 1st
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randis_oddyrandis_oddy
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8 years ago
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Kellman Author
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8 years ago
Thank you!
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