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Biology 18 Online
OpenStudy (anonymous):

Is Down syndrome a sex-linked trait, a recessive trait, the result of having too few chromosomes, or the result of having an extra chromosome?

OpenStudy (shrutipande9):

it is an autosomal disease. caused due to an extra chromosme no 21. also called trisomy21

OpenStudy (anonymous):

Thanks! :D

OpenStudy (shrutipande9):

happ 2 help:D

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