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A fatal central nervous system disorder caused by a copy number variation—more than 35 repetitions of a particular set of three base pairs—is _____. A) Down syndrome B) nearsightedness C) fragile X
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A fatal central nervous system disorder caused by a copy number variation—more than 35 repetitions of a particular set of three base pairs—is _____.

A) Down syndrome
B) nearsightedness
C) fragile X syndrome
D) Huntington's disease

User Shankhan
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A. I hope it this help
User Brin
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