The other two, thymine and cytosine, are single ring structures called pyrimidines.

另两个为胸腺嘧啶和胞嘧啶, 即称为嘧啶的单环结构.

辞典例句

It also donates an amino group in synthesis reactions, e . g . the synthesis of purines and pyrimidines.

还可参加合成反应生成一系列的氨基酸, 例如嘌呤和嘧啶的合成.

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Purines and pyrimidines have widespread and specific action in many tissues of both invertebrates and vertebrates.

在脊椎类和无脊椎类动物的多种组织中,嘧啶与嘌呤类物质具有广泛的特异性作用.

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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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