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CPMT - 2002 (Zoology)
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Down syndrome is caused due to which of the following?
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A
Increase in number of chromosomes in 21st pair autosome
💡 Explanation:
Down syndrome, also known as trisomy 21, is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21. It is typically associated with physical growth delays, characteristic facial features and mild to moderate intellectual disability.