Question

    Extra number of which chromosome is responsible for

    Down’s syndrome (Mongoloid Idiot) in man.
    A Chromosome No. 21 Correct Answer Incorrect Answer
    B X-Chromosome Correct Answer Incorrect Answer
    C Y – Chromosome Correct Answer Incorrect Answer
    D 15 + X chromosome Correct Answer Incorrect Answer

    Solution

    Down syndrome is a complex set of pathologies caused by an extra copy of human chromosome 21 (Hsa21).

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