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the extra copy of chromosome 21(passive) is caused byDown Syndrome | Down Syndrome
trisomy of ch no .(passive) Caused byDown Syndrome :
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the presence of all or part of a third copy of chromosome 21(passive) caused byDown syndrome s
mental disabilities(passive) may be causedDown syndrome ’s
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a mistake in cell division during early development of the fetus(passive) caused byDown syndrome 's
T.Omama(passive) Created byDown syndrome @margaphuang
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highly variable degrees of learning difficulties and physical disabilitiescausinghighly variable degrees of learning difficulties and physical disabilities
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