Regarding Fragile X Syndrome, Which of the Following Statements Is

question 493

Multiple Choice

Regarding fragile X syndrome, which of the following statements is TRUE?

• A)Fragile X syndrome is a sex-linked hereditary condition.
• B)Fragile X syndrome results from a lack of an important enzyme and is linked to very low levels of dopamine.
• C)Fragile X syndrome is a condition caused by an extra chromosome at pair 21.
• D)Fragile X syndrome results from an insufficient supply of thyroid hormone.

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