英文: Biochemistry) A nitrogenous molecule, either a PYRIMIDINE or a PURINE, that combines with a pentose sugar and phosphoric acid to form a nucleotide, the fundamental unit of nucleic acids.

中文: 2碱基：一种含氮的分子，嘌呤碱或者是嘧啶碱，它们和戊糖还有磷酸一起构成核苷酸，核苷酸是核酸的基本结构单位。       更详细...

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英文: Deoxyribose A pentose (five-carbon) sugar that is a component of the nucleotides that make up DNA.

中文: 脱氧核糖：组成DNA核苷的一种戊糖（五个碳）。       更详细...

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英文: Ketopentose A ketose SUGAR with five carbon atoms, e.g. ribulose.

中文: 戊酮糖：一种五碳的酮糖。例如：核酮糖。       更详细...

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