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An extra copy of chromosome 21 in humans causes Down syndrome cystic fibrosis HIV none of the above

An extra copy of chromosome 21 in humans causes Down syndrome cystic fibrosis HIV none of the above
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3 votes
An extra copy of chromosome 21 in humans causes

Down syndrome
cystic fibrosis
HIV
none of the above

User Gmagno
by
7.8k points

2 Answers

6 votes
Down syndrome is the result of an extra copy of chromosome 21 in a human.
User JonathanDavidArndt
by
8.2k points
5 votes

Answer:

Down syndrome is when there is an extra copy of chromosome 21

User Etienne Gautier
by
8.3k points
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