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文献和实验Micro RNA Profiling: An Easy and Rapid Method to Screen and Characterize Stem Cell Populations
MicroRNAs (miRNAs) are small regulatory RNAs varying in length between 20 and 24 nucleotides. They are thought to play a key role during development by negative gene regulation at the post-transcriptional level. Recent studies using
扩增曲线的分析攻略。 1、确认软件设置是否正确 对照试剂盒说明书,检查时间、温度、循环数、荧光采集等是否设置正确。有一个比较容易忽略的设置问题是,需要看下所选用的试剂中是否含有 ROX 来作为参比荧光染料。Applied Biosystems™ 系列荧光定量 PCR 仪器可以用 ROX 来作为参比荧光染料,用以校正仪器系统以外的物理误差,比如均一化校正由于移液误差或者蒸发导致的批内体积误差等。目前市面上有的的荧光定量 PCR 预混液是不含有 ROX 的,当用此类试剂的时候,应该将 ROX 参比
Preparation of DNA Template For Direct Sequencing of Large Insert PAC and BAC Plasmid
each block with an AirPore™ (Qiagen Inc.) sheet and incubate at 37?C with shaking at 325 RPM for approximately 20 hours. 2. Pellet cells by centrifugation for 20’ at 3,200 RPM in a Sorvall RT7 at 4?C with RTH-250 rotor, ~1700 xg. Decant and drain pellets
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