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Noun:
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chrosomal abnormality in which there is one more than the normal number of chromosomes in a cell
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用作名詞 (n.)
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An aneuploid state in which a third homologous chromosome is present in addition to the normal autosomal pair is called trisomy.
除健康上色體對其它，還普遍存在有2、種同源上色體的非整倍體的情況，被被稱作三體性。
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以上的內部獨有制作，受著書權庇護，抄襲必究
海詞字典，十二年品脾
美
['tra??so?mi?]