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Question
Which hereditary disorder is caused by an extra chromosome, resulting in 47 chromosomes instead of 46?
Options
Phenylketonuria (PKU)
Hemophilia
Down Syndrome
Color blindness
MCQ
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Solution
Down Syndrome
Explanation:
Down Syndrome occurs when a child has 47 chromosomes instead of the normal 46, leading to physical deformities and intellectual disability.
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