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词汇 DNA
释义

Definition of DNA in English:

DNA

noun diːɛnˈeɪˌdi ˌɛn ˈeɪ
mass nounBiochemistry
  • 1Deoxyribonucleic acid, a self-replicating material which is present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information.

    〔生化〕脱氧核糖核酸

    Each molecule of DNA consists of two strands coiled round each other to form a double helix, a structure like a spiral ladder. Each rung of the ladder consists of a pair of chemical groups called bases (of which there are four types), which combine in specific pairs so that the sequence on one strand of the double helix is complementary to that on the other: it is the specific sequence of bases which constitutes the genetic information

    Example sentencesExamples
    • Almost every cell in the body of an organism has the same deoxyribonucleic acid.
    • Increasingly, materials scientists are taking deoxyribonucleic acid beyond its origins as a carrier of genetic code and adapting it for use as a nanotechnology tool.
    • In cultured cells, the consumption of the nutrients in the medium may affect the cell metabolism by interfering with deoxyribonucleic acid, ribonucleic acid and protein synthesis.
    • In general, deoxyribonucleic acid, or DNA, is a very stable molecule.
    • Many molecules, especially those in living things such as sugar, fat, or protein molecules and molecules of deoxyribonucleic acid or ribonucleic acid, are much larger and more complex.
    • Along with several independent teams, her group is extracting DNA, or deoxyribonucleic acid, from the soil and working to clone the material.
    • DNA, or deoxyribonucleic acid, has an overall negative charge, so it might be used in a process called self-assembly to create electronic devices.
    • Each chromosome carries a single strand of deoxyribonucleic acid that threads together about 1,000 genes.
    • Within the nucleus are chromosomes that contain DNA, or deoxyribonucleic acid, genetic material unique to each individual.
    • The development of organisms, from human bodies to viruses, depends on genetic information contained in DNA, deoxyribonucleic acid.
    1. 1.1 The fundamental and distinctive characteristics or qualities of someone or something, especially when regarded as unchangeable.
      固有特性;显著特点
      diversity is part of the company's DNA

      多样性是这家公司的传统特点。

      men just don't get shopping—it's not in our DNA

      男人就是对购物不理解——这不是我们的本性。

Definition of DNA in US English:

DNA

nounˌdē ˌen ˈāˌdi ˌɛn ˈeɪ
Biochemistry
  • 1Deoxyribonucleic acid, a self-replicating material which is present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information.

    〔生化〕脱氧核糖核酸

    Each molecule of DNA consists of two strands coiled around each other to form a double helix, a structure like a spiral ladder. Each rung of the ladder consists of a pair of chemical groups called bases (of which there are four types), which combine in specific pairs so that the sequence on one strand of the double helix is complementary to that on the other. It is the specific sequence of bases that constitutes the genetic information

    Example sentencesExamples
    • Within the nucleus are chromosomes that contain DNA, or deoxyribonucleic acid, genetic material unique to each individual.
    • Along with several independent teams, her group is extracting DNA, or deoxyribonucleic acid, from the soil and working to clone the material.
    • DNA, or deoxyribonucleic acid, has an overall negative charge, so it might be used in a process called self-assembly to create electronic devices.
    • Almost every cell in the body of an organism has the same deoxyribonucleic acid.
    • Many molecules, especially those in living things such as sugar, fat, or protein molecules and molecules of deoxyribonucleic acid or ribonucleic acid, are much larger and more complex.
    • The development of organisms, from human bodies to viruses, depends on genetic information contained in DNA, deoxyribonucleic acid.
    • In cultured cells, the consumption of the nutrients in the medium may affect the cell metabolism by interfering with deoxyribonucleic acid, ribonucleic acid and protein synthesis.
    • Increasingly, materials scientists are taking deoxyribonucleic acid beyond its origins as a carrier of genetic code and adapting it for use as a nanotechnology tool.
    • Each chromosome carries a single strand of deoxyribonucleic acid that threads together about 1,000 genes.
    • In general, deoxyribonucleic acid, or DNA, is a very stable molecule.
    1. 1.1 The fundamental and distinctive characteristics or qualities of someone or something, especially when regarded as unchangeable.
      固有特性;显著特点
      diversity is part of the company's DNA

      多样性是这家公司的传统特点。

      men just don't get shopping—it's not in our DNA

      男人就是对购物不理解——这不是我们的本性。

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