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प्रश्न
What is Down's syndrome due to?
अति संक्षिप्त उत्तर
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उत्तर
Trisomy of chromosome 21; affected individuals usually have 47 chromosomes.
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या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
What is Down's syndrome due to?
Trisomy of chromosome 21; affected individuals usually have 47 chromosomes.