Circularised DNA produces a specific, typical number of agarose gel bands

the verdict

SUPPORTED

the evidence backs this

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2 sources for · 0 against

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Circularised DNA molecules such as plasmids typically produce specific banding patterns corresponding to their different topological forms and topoisomers when analyzed by agarose gel electrophoresis.

The analysis

The retrieved literature supports the premise that circular DNA, such as plasmids, separates into specific topological forms and topoisomers on an agarose gel, resulting in distinct, characteristic bands.

Evidence for · 2

Quantification of DNA by agarose gel electrophoresis and analysis of the topoisomers of plasmid and M13 DNA following treatment with a restriction endonuclease or DNA topoisomerase I

Recorded source metadata

John W. Tweedie, Kathryn M. Stowell. Quantification of DNA by agarose gel electrophoresis and analysis of the topoisomers of plasmid and M13 DNA following treatment with a restriction endonuclease or DNA topoisomerase I. 2005. https://doi.org/10.1002/bmb.2005.494033010410

Paper [1] discusses the analysis of various topological forms of plasmid DNA, including topoisomers, using agarose gel electrophoresis.

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More for · 1

[Formation of cruciform structures in pAO3 plasmid DNA on increasing superhelical density].

Recorded source metadata

I G Paniutin, V I Liamichev, Iu L Liubchenko. [Formation of cruciform structures in pAO3 plasmid DNA on increasing superhelical density].. 1983. https://pubmed.ncbi.nlm.nih.gov/6308419/

Paper [8] demonstrates that high-resolution gel electrophoresis can resolve the specific topoisomers of circular plasmid DNA into distinct bands.

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first checked01 Aug 2026

judged → SUPPORTED · 8201 Aug 2026

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