in bacteria, one of a group of extrachromosomal genetic elements called plasmids, consisting of deoxyribonucleic acid (DNA) and capable of conferring ... [1 related articles]
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<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: ...
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(ep´ĭ-sōm) in bacterial genetics, any accessory extrachromosomal replicating genetic element that can exist either autonomously or integrated with the chromosome.
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A part of a gene.
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An element which carries genetic material, is able to transmit inheritable traits and to alternate between autonomous and integrated states in the host cell; in the integrated state an episome is physically associated with a chromosome, while in the autonomous state it is extrachromosomal.
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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 > Escherichia coli.
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Type: Term Pronunciation: ep′i-sōm Definitions: 1. An extrachromosomal element (plasmid) that may either integrate into the bacterial chromosome of the host or replicate and function stably when physically separated from the chromosome.
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bacterial DNA that is extrachromosomal and that may replicate autonomously as a plasmid or become incorporated into the chromosome and replicate with it.
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