摘要:第一节 概 述DNA分子水平上的多态性检测技术是进行基因组研究的基础。RFLP(Restriction Fragment Length Polymorphism，限制片段长度多态性)已被广泛用于基因组遗传图谱构建、基因定位以及生物进化和分类的研究。RFLP是[阅读全文:]
摘要:macerate tissue in Eppendorf tube without butter at RT add 400 m l extraction buffer vortex for 4 sec leave sample at RT until other samples are ready (> 1 h) spin in microfuge for 1 min transfer 300 [阅读全文:]
摘要:PEG Preparation of Plasmid Plasmid isolated by this procedure can be used routinely for electrophoretic analysis, restriction endonuclease digestion and transformation of E. Coli., sequencing, PCR and[阅读全文:]
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摘要:UV shadowing is a technique for visualizing nucleic acids separated on acrylamide/urea gels. The technique utilizes shortwave UV light (254 nm) and a fluor-coated TLC plate. We recommend UV shadowing [阅读全文:]
摘要:Bst DNA polymerase-catalyzed radiolabeled two-step sequencing reactions (26) are modified from those presented earlier (25) by altering the absolute amounts and the relative deoxy/dideoxynucleotide ra[阅读全文:]
摘要:第一节 概 述 一. DNA的限制性内切酶酶切分析 限制性内切酶能特异地结合于一段被称为限制性酶识别序列的DNA序列之内或其附近的特异位点上，并切割双链DNA。它可分为三类:Ⅰ类和Ⅲ类酶在同一蛋白质分子中兼有切割和修饰([阅读全文:]
摘要:一、 建立一个标准的酶切反应目前大多数研究者遵循一条规则，即10个单位的内切酶可以切割1μg不同来源和纯度的DNA。通常，一个50μl的反应体系中，1μl的酶在1X NEBuffer终浓度及相应温度条件下反应1小时即可降解1&[阅读全文:]
摘要:I have been using an alternative to wedge gels that saves acrylamide, cuts gel drying time to 20 min and gives as good or better band squashing at the bottom of the gel. It was published in BioTechniq[阅读全文:]
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