它还与核苷酸互换使用，尽管后者是由一个五碳糖、磷酸和一个碱基组成。
The term is also used interchangeably with “nucleotide” although the latter is composed of a five-carbon sugar joined to a phosphate group and one of the bases.
背景与目的：研究碱基切除修复基因XRCC1基因G28152A单核苷酸多态与肺癌风险的关系。
BACKGROUND&AIM: To evaluate the correlation between the single nucleotide polymorphism of XRCC1gene G28152A and the risk of lung cancer.
植物可以通过多种途径来修复紫外诱导的DNA损伤，主要包括光修复、碱基切除修复、核苷酸切除修复和重组修复等。
Plant could repair DNA damage induced by UV-B through many methods, mainly included light-repair, base excision repair, nucleotide excision repair and recombination repair etc.
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