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Arisa [49]
3 years ago
9

Down syndrome, also called trisomy 21, is a genetic disorder that results from having three copies of chromosome 21 instead of t

wo. what is a logical explanation for this genetic error?
Health
1 answer:
Nataliya [291]3 years ago
8 0
This is just a random event that occurs during the formation . It is not inherited
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