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What gene or chromosome is affected by down syndrome.
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What gene or chromosome is affected by down syndrome.

User Kgnkbyl
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2 Answers

8 votes

Answer:

Chromosome 21

Step-by-step explanation:

Babies with Down syndrome have an extra copy of one of these chromosomes, chromosome 21

User NCrazed
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9 votes

Chromosome 21!

Enjoy!

User Pritam Kar
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