CEQ DNA SIZE STD 600BP DNA分子量

血液基因组 DNA 提取试剂盒操作指南（DP349） ——小体积全血操作流程（600 μl 以内血样)

以下操作按照天根产品 DP349 血液基因组 DNA 提取试剂盒的说明书进行，所有反应现象仅适用于该产品及本文所标明的样本量。如使用其它操作流程或产品，样本量不同可能现象与本文有所差异。实验准备：1. 抗凝全血(本实验以300 μl人的抗凝全血为例 )2. 移液器及配套无菌枪头（2.5 μl ， 200 μl ，1ml），1.5 ml离心管3. 无水乙醇，70%乙醇，干净的吸水纸4. 涡旋振荡器，金属浴/水浴，台式离心机备注：本实验以人血为例，如提取哺乳动物全血可以用此流程，如果禽类、鸟类

Making Combination Markers for Size Standards on Southern Blots

enzyme will result in lambda DNA fragments of known size. Three separate lambda digests (BglII, BstEII, and XhoI) will give 23 fragments with a molecular weight range of 60 bp to 33,498 bp (see illustration below). The three digests are pooled, diluted

Determination of Bacteriophage Genome Size by Pulsed-Field Gel Electrophoresis

Standard agarose gel electrophoresis is extensively used to resolve DNA fragments from 0.2 to 40–50 kb. Larger fragments of genomic DNA or whole viral genomes can only effectively be resolved by pulsed-field gel electrophoresis (PFGE