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憶夢(mèng)24118新蟲 (初入文壇)
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[求助]
separate the DNA fragments
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If you would like to separate the DNA fragments ranging from 1 kb to 20 kb, what kind of technique could be used? How do you determine the accurate size of an unknown DNA molecule by this technique? |

鐵桿木蟲 (正式寫手)
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Agarose gel electrophoresis can do the job. By using the molecular-weight size marker (or ladder), you can identify the approximate size of the molecules run on the gel, because molecular weight is inversely proportional to migration rate through a gel matrix. |
木蟲 (職業(yè)作家)
銀蟲 (小有名氣)
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