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專業人士幫忙翻譯分子生物英文段落翻成中文~勿用翻譯網
Often
it is important to determine the sizes of DNA bands on gels after electrophoresis. This may easily be done if marker DNA samples on the gel. The marker DNA sample contains a number of DNA molecules
each with a known molecular size. For example
bacteriophage lambda genomic DNA digested with HindIII has 8 fragment of 23130
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6557
6361
2322
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564
and125 base pairs(The 125 bp fragment is often not seen in experiment
either because it is too faint or because it runs off the gel. This band will be ignored in the rest of the tutorial.) an example of a gel with this DNA marker and some
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