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Biology, 18.03.2021 02:10 zeezee46

PLEASE HELP ASAP If an individual has trisomy 21, what is true of the individual's chromosomes?

There are 21 chromosomes in each body cell.
There is a deletion of chromosome 21.
There are 47 chromosomes in each body cell.
There are 47 chromosomes in half the body cells.

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PLEASE HELP ASAP If an individual has trisomy 21, what is true of the individual's chromosomes?
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