Definition(s)
- Double-strand, closed DNA molecules found in cytoplasm of a variety of bacterial species that generally confer some evolutionary advantage to the host cells.
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Definition from: CRISP Thesaurus via Unified Medical Language System
at the National Library of Medicine
- An extrachromosomal ring of DNA that replicates autonomously and is found especially in bacteria.
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Definition from: Merriam-Webster's Medical Dictionary
by Merriam-Webster Inc.
- A plasmid is a small, often circular DNA molecule found in bacteria and other cells. Plasmids are separate from the bacterial chromosome and replicate independently of it. They generally carry only a small number of genes, notably some associated with antibiotic resistance. Plasmids may be passed between different bacterial cells.
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Definition from: Talking Glossary of Genetic Terms
from the National Human Genome Research Institute
See also Understanding Medical Terminology.