in techniques for the analysis of genetic material, such as DNA and/or RNA, wherein the genetic material is denatured, fixed to a substrate and hybridized with a probe, superior results are obtainable when there is employed as the probe a chemically labeled probe which, preferably after hybridization, has added or attached thereto, such as to the chemical label or moiety of the probe, an enzyme component effective upon contact with a chromogen to produce an insoluble color precipitate or product. Techniques for the analysis of genetic material which are improved in sensitivity, definition, accuracy and/or speed, by employing a chemically labeled probe, include such well known techniques as «Southern» blot analysis, «Northern» blot analysis, «Western» blot analysis, colony hybridization, plaque lifts, cytoplasmic dot hybridization, in situ hybridization to cells and/or tissues and other such techniques.
在分析遗传物质(如 DNA 和/或 RNA)的技术中,遗传物质被变性、固定在基质上并 与探针杂交,当探针采用
化学标记的探针时,可获得较好的结果,该探针最好在杂交 后添加或附着(如在探针的
化学标记或分子上)一种酶成分,该酶成分与发色剂接触 后可产生不溶性的彩色沉淀或产物。通过采用
化学标记探针,在灵敏度、清晰度、准确性和/或速度方面都有所提高的遗传物质分析技术包括众所周知的 "Southern "印迹分析、"Northern "印迹分析、"Western "印迹分析、菌落杂交、斑块升降、细胞质点杂交、细胞和/或组织原位杂交等技术。