• Adenine and guanine are purines and cytosine and thymine are pyrimidines.

    嘌呤嘌呤嘌呤和胞嘧啶胸腺嘧啶嘧啶

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

    两个为胸腺嘧啶嘧啶即称为嘧啶的单环结构

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  • The most abundant bases are cytosine, thiamine, and uracil (pyrimidines) and adenine and guanine (purines).

    丰富碱基胞嘧啶,胸腺嘧啶,尿嘧啶,腺嘌呤嘌呤

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  • The most abundant bases are cytosine, thiamine , and uracil ( pyrimidines ) and adenine and guanine ( purines ) .

    丰富碱基胞嘧啶, 胸腺嘧啶, 尿嘧啶,腺嘌呤嘌呤

    youdao

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

    脊椎无脊椎类动物多种组织中嘧啶嘌呤类物质具有广泛的特异性作用

    youdao

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

    脊椎无脊椎类动物多种组织中嘧啶嘌呤类物质具有广泛的特异性作用

    youdao

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