Genetics Quiz
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MOLECULAR GENETICS TECHNIQUES & GENOMICS
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A 5 kb plasmid with a single *Xho*I site is digested to linearize it. The reaction product is analyzed on an agarose gel. The lane shows a bright band at the expected 5 kb linear size. However, a second, fainter band is also visible that migrates faster than the 5 kb linear band. This same faster-migrating band is the primary band seen in the uncut plasmid control lane. What is the most likely identity of this second, fainter band in the digested sample?
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