DNA

英 [ˌdiː en ˈeɪ]

美 [ˌdiː en ˈeɪ]

n.  脱氧核糖核酸(动植物的细胞中带有基因信息的化学物质)

复数：dnas　

计算机

Collins.2 / BNC.2519 / COCA.2829

牛津词典

noun

• 脱氧核糖核酸（动植物的细胞中带有基因信息的化学物质）
  deoxyribonucleic acid (the chemical in the cells of animals and plants that carries genetic information and is a type of nucleic acid )
  1. a DNA test
     DNA 测试

柯林斯词典

• 脱氧核糖核酸
  DNAis an acid in the chromosomes in the centre of the cells of living things. DNA determines the particular structure and functions of every cell and is responsible for characteristics being passed on from parents to their children.DNAis an abbreviation for (缩略=) 'deoxyribonucleic acid'.

双语例句

• In short, DNA makes messenger RNA, and messenger RNA makes proteins.
  简言之，脱氧核糖核酸产生了信使核糖核酸，信使核糖核酸又产生了蛋白质。
• DNA is the information storage component in every cell in every plant and animal.
  DNA是每一个植物和生物细胞中的信息存储成分。
• Using human genomes and DNA migration patterns.
  利用人类基因和dna迁移。
• Transposable elements, or insertion elements, are DNA sequences which can be inserted into many different sites in chromosomes.
  转位因子或插入因子是能够插入到染色体不同位点的dna序列。
• The inhibin plasmid DNA was extracted and purified by alkaline lysis method and DEAE-fiber column chromatography and its concn.
  采用碱裂解法与DEAE-纤维柱层析法提取与纯化抑制素质粒DNA，用分光光度法测定其浓度和纯度。
• A total of22 restriction endonucleases were used to investigate the mitochondrial DNA polymorphism of Sanjiang White pigs.
  采用22种限制性内切酶分析了三江白猪线粒体DNA的多态性。
• DNA fingerprinting has proved the clincher in this investigation
  在这次调查中，DNA指纹鉴定起了决定性的作用。
• Genetic abnormalities are more often associated with faults in paternal DNA than in maternal DNA.
  相对于母本DNA，基因畸变往往更多地与父本DNA上的缺陷相关。
• The team found some were vital for DNA packaging, chromosome segregation and fertility.
  研究小组发现了一些对DNA包装，染色体分离和富集至关重要的蛋白。
• The researchers demonstrated this using DNA in a test tube.
  研究人员在试管中演示了DNA编辑这一操作过程。