下列哪一种基因多态性是造成不同人种膀胱癌发病率的差异A.CYP1A1B.NAT2C.XRCC1D.MIDM2E.GSTM1

作者: rantiku 人气: - 评论: 0
问题 下列哪一种基因多态性是造成不同人种膀胱癌发病率的差异
选项 A.CYP1A1 B.NAT2 C.XRCC1 D.MIDM2 E.GSTM1
答案 B
解析 :NAT2慢代谢型频率在白种人中约有50%,黑种人中约35%,而亚洲黄种人中只有约10%,这种差异与这三种人群的膀胱癌发生率趋势一致,即白种人>黑种人>黄种人。
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