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单词 purines
例句 DEFINITIVE EXAMPLES 权威例句〔base〕One of the purines (adenine and guanine) or pyrimidines (cystosine, thymine, and uracil) that occurs attached to the sugar component of DNA or RNA.碱基:嘌呤(腺嘌呤和鸟嘌呤)或嘧啶(胸嘧啶、胸腺嘧啶和尿嘧啶)的一种,附着在脱氧核糖核酸或核糖核酸的糖分子上美国传统〔complementary〕Biochemistry Of or relating to the specific pairing of the purines and pyrimidines between strands of a DNA or an RNA molecule.【生物化学】 互补的:指DNA或RNA分子链之间特定的嘌呤和嘧啶碱基对的互补美国传统
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