dna

• The aqueous phase is precipitated with 2 volumes of alcohol, and the dna wound out from it .
  水相用两倍的乙醇沉淀就可以从中透出DNA。
• It is capable of being integrated into the continuity of the host cell dna as provirus .
  它能作为原病毒入寄主DNA细胞的连续整体中去。
• Gene cloning provides a means of purifying and propagating specific dna segments .
  基因克隆化提供了一种纯化和扩增特定DNA片段的方法。
• It was, for example, long thought that the dna molecules were of monotonous regularity .
  长期以来认为，分子量很大的DNA分子具有严格规律性。
• The structure of dna and its functions of replication and transcription are compatible .
  DNA的结构与它所担负的复制和转录的功能是协调一致的。
• The holoenzyme recognizes specific nucleotide sequences on the dna duplex(promoters) .
  全酶还能识别DNA双链分子上的特定核苷酸序列（起动基因）。
• The template specificities found with dna polymerases from human leucocytes is summarized in table 1 .
  人白血病DNA聚合酶的模板特异性简列于表1中。
• The template specificities found with dna polymerases from human leucocytes is summarized in table 1 .
  人的白血病DNA聚合酶的模板特异性简列于表1。
• For example, fragments resembling dna from cancer-causing viruses might be removed and destroyed .
  例如，可能除掉或破坏类似来源于致癌病毒的DNA片段。
• Large dna molecules are first dissected with restriction enzymes to produce specific fragments .
  首先用限制性内切酶将大的DNA分子切断，产生出特殊的片段。