以下为句子列表:
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。
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英文: The family is the fundamental unit of the society.
中文: 家庭是社会的基本单位.
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英文: In eukaryotic cells, the fundamental unit of chromatin is nucleosome, which is composed of a histone octamer with two copies of HA, HB, H and H and base pairs of DNA.
中文: 真核细胞中,核小体是染色质的基本单位,它由两个拷贝HA、HB、H 和H所组成的核心组蛋白八聚体,及缠绕于其上的bp DNA构成。
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