Down syndrome results from a chromosomal abnormality where there is an extra 21st chromosome.
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Biology, 26.09.2019 04:40 Jabari1946
Down syndrome results from a chromosomal abnormality where there is an extra 21st chromosome.
1 point
a.
monosomy
b.
trisomy
c.
mitotic
d.
replication
need
Answers: 1
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