Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) Which of the following is the most common cause of trisomy and mental retardation in children? - Sarthaks eConnect
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Which of the following is the most common cause of trisomy and mental retardation in children?

Which of the following is the most common cause of trisomy and mental retardation in children?

A.

Klinefelter's syndrome

B.

Turner's syndrome

C.

Down's syndrome
D.

Sickle cell Anaemia

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