求翻译：XPC多态性是参与影响肿瘤易感性及化疗药物反应性的重要遗传因素。故本实验主要研究XPC Ala499Val、Lys939Gln位点多态性及单倍型与乳腺癌的发生、发展及预后的相关性。是什么意思？

XPC polymorphisms are involved in tumor susceptibility and response to chemotherapy of the important genetic factors. Therefore, this study primarily studies XPC Ala499Val, Lys939Gln polymorphisms and haplotypes with breast cancer, development and prognosis.

XPC polymorphism is involved in tumor susceptibility effects of chemotherapy drug reactions and the importance of genetic factors. Therefore, the experimental research XPC Ala Val 499 , 939 Lys Gln polymorphism and single digit points in transition times with breast cancer occurrence, development an

The XPC polymorphism is participates in the influence tumor susceptivity and the chemotherapy medicine reactivity important heredity factor.Therefore this experiment mainly studies XPC Ala499Val, the Lys939Gln position spot polymorphism and Shan Beixing and breast cancer occurrence, the development

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XPC polymorphisms are involved in tumor susceptibility and response to chemotherapy of the important genetic factors. Therefore, this study primarily studies XPC Ala499Val, Lys939Gln polymorphisms and haplotypes with breast cancer, development and prognosis.