Circular DNA

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Circular DNA is a form of DNA that is found in viruses, bacteria and archaea as well as in eukaryotic cells in the form of either mitochondrial DNA or plastid DNA.

This form of DNA does not contain histones.[1]

While the individual strands of a linear double helix represent two distinct and separable molecules, this need not be true for circular DNA.

See also[edit]


  1. ^ Luiz Carlos Uchôa Junqueira; José Carneiro (2003). Basic Histology. Lange Medical Books McGraw-Hill. ISBN 978-0-07-137829-1.