Uracil -- a pyrimidine found in RNA that base - pares with adenine.
尿嘧啶 -- 核糖核酸中的一种嘧啶,与腺嘌呤形成碱基对.
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The most abundant bases are cytosine, thiamine , and uracil ( pyrimidines ) and adenine and guanine ( purines ) .
最丰富的碱基是胞嘧啶, 胸腺嘧啶, 尿 嘧 啶,腺嘌呤和鸟嘌 呤.
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