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词汇 deoxyribose
释义

Definition of deoxyribose in English:

deoxyribose

noundɪˌɒksɪˈrʌɪbəʊsdɪˌɒksɪˈrʌɪbəʊzdēˌäksēˈrībōs
mass nounBiochemistry
  • A sugar derived from ribose by replacement of a hydroxyl group by hydrogen.

    〔生化〕脱氧核糖

    Chemical formula; C₅H₁₀O₄. There are several isomers; the isomer 2-deoxyribose is a constituent of DNA

    Example sentencesExamples
    • The backbone of both strands in the double helix is a chain of linked phosphate and deoxyribose molecules.
    • Sugars are vital components of life, e.g. the 5-carbon sugars ribose and deoxyribose are part of the skeletons of our information storage molecules, RNA and DNA respectively.
    • Each nucleotide is composed of deoxyribose (a type of sugar), a phosphate group, and one of four nitrogen-containing bases.
    • Another difference between DNA and RNA is that RNA contains ribose, rather than deoxyribose.
    • For example, ribose and deoxyribose are essential for the formation of the backbone of RNA and DNA.

Origin

1930s: from de- (expressing reduction) + oxy-2 + ribose.

Definition of deoxyribose in US English:

deoxyribose

noundēˌäksēˈrībōs
Biochemistry
  • A sugar derived from ribose by replacing a hydroxyl group with hydrogen.

    〔生化〕脱氧核糖

    Chemical formula; C₅H₁₀O₄. There are several isomers; the isomer 2-deoxyribose is a constituent of DNA

    Example sentencesExamples
    • For example, ribose and deoxyribose are essential for the formation of the backbone of RNA and DNA.
    • Sugars are vital components of life, e.g. the 5-carbon sugars ribose and deoxyribose are part of the skeletons of our information storage molecules, RNA and DNA respectively.
    • The backbone of both strands in the double helix is a chain of linked phosphate and deoxyribose molecules.
    • Each nucleotide is composed of deoxyribose (a type of sugar), a phosphate group, and one of four nitrogen-containing bases.
    • Another difference between DNA and RNA is that RNA contains ribose, rather than deoxyribose.

Origin

1930s: from de- (expressing reduction) + oxy- + ribose.

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