Question

what is down syndrome?​

Answer 1

Answer:

trisomy of 21st chromosome is called down syndrome.

it is due to non disjunction of homologous chromosome during anaphase1

the condition is represented as 2n+1

Answer 2

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Here is ur answer mate

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A genetic chromosome 21 disorder causing developmental and intellectual delays.

Down's syndrome is a genetic disorder caused when abnormal cell division results in extra genetic material from chromosome 21.

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