Harry Has Been Suffering from Mental Retardation and a Learning

question 22

Multiple Choice

Harry has been suffering from mental retardation and a learning disability since infancy.Subsequent tests revealed an abnormality in his X chromosome,which becomes constricted and often breaks.Identify the syndrome that Harry suffers from.

• A)Turner syndrome
• B)Fragile X syndrome
• C)XYY syndrome
• D)Klinefelter syndrome

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