Question

what is called down syndrome?

Answer 1

Down syndrome (DS or DNS), 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.

Answer 2

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$\pink\longmapsto\:$ Down's syndrome is a genetic disorder that causes delay in physical and intellectual development.It is due to the presence of an additional copy of the chromosome numbered 21( Trisomy 21)

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