分子医学技能ppt课件-分子医学技能-实验二.pptx
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1、实验二 PCR检测乙肝病毒PCR分析apoB基因多态性,PCR实验结果图,乙肝病毒PCR实验操作,apoB基因PCR多态性分析,血清样本处理(模板的制备),PCR检测乙肝病毒,PCR反应上机,口腔细胞总DNA(模板),apoB基因PCR实验操作,PCR反应上机,实验安排,PCR基本原理及相关知识,The Polymerase Chain Reaction,Sometimes called molecular photocopying,the polymerase chain reaction(PCR)is a fast and inexpensive technique used to amp
2、lify,or make many copies of,small segments of DNA.The technology empowers scientists to undergo a number of processes,from DNA fingerprinting to mapping the human genome.In 1983,Kary Mullis invented the PCR.The process is an invaluable tool to todays molecular biologists and biotechnology corporatio
3、ns.,Kary B.Mullis,As he wrote later in Scientific American:Beginning with a single molecule of the genetic material DNA,the PCR can generate 100 billion similar molecules in an afternoon.The reaction is easy to execute.It requires no more than a test tube,a few simple reagents and a source of heat.,
4、(1944-),The Nobel Prize in Chemistry 1993 for his invention of the polymerase chain reaction(PCR)method(1/2 of the prize),3 step and 30 cycles for PCR,Step 1.Denaturation,Step 2.Anneal,Step 3.Extend,30 cycles,create over a billion copies of the sequence,Step 1.Denaturation(变性),The reaction is first
5、heated to denature(separate)the sides of the double-stranded DNA,Temperature:95 degrees Celsius,Step 2.Anneal(退火),then cooled to allow the primers to find and bind to their complementary sequences on the separated strands.,Temperature:55 degrees Celsius,Step 3.Extend(延伸),the polymerase to extend the
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