| episome | <molecular biology> Piece of hereditary material that can exist as free, autonomously replicating DNA or be attached to and integrated into the chromosome of the cell, in which case it replicates along with the chromosome. Examples of episomes are many bacteriophages such as lambda and the male sex factor of Escherichia coli. Origin: Gr. Soma = body (18 Nov 1997) |
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| episome |
A genetic extrachromosomal element (eg, the fertility factor (F) in Escherichia coli) which replicates within a cell independently of the chromosome and is able to integrate into the host chromosome. The step of integration may be governed by a variety of factors and so the term episome has lost favour and been superseded by the wider term plasmid. Plasmids and F factors are episomes.
Ãâó: www.fao.org/docrep/003/X3910E/X3910E08.htm
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| episome |
An extrachromosomal DNA fragment, such as a plasmid.
Ãâó: www.genpromag.com/Glossary~LETTER~E.html
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| episome |
An autonomously replicating plasmid (a circular, double-stranded DNA molecule) that is capable of integrating into the host cell's chromosome.
Ãâó: www.modernhumanorigins.com/e.html
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| episome |
A genetic element in bacteria that can replicate free in the cytoplasm or can be inserted into the main bacterial chromosome and replicate with the chromosome. Term used by Jacob and Wollman for genetic elements that can either exist independently in a cell or become integrated into the host chromosome.
Ãâó: helios.bto.ed.ac.uk/bto/glossary/ef.htm
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| episome |
A plasmid that can exist either independently in the cytoplasm or as an integrated part of the genome of its bacterial host.
Ãâó: www.kumc.edu/gec/gloss.html
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