Definition of plasmid in English:

plasmid

noun ˈplazmɪdˈplæzmɪd

Biology

A genetic structure in a cell that can replicate independently of the chromosomes, typically a small circular DNA strand in the cytoplasm of a bacterium or protozoan. Plasmids are much used in the laboratory manipulation of genes.
Compare with episome
Example sentencesExamples
- Conjugative plasmids can mediate gene transfer between bacterial taxa in diverse environments.
- For sporulation, diploid cells with plasmids were first grown in selective media.
- The bacterium contains a plasmid, a circular piece of DNA that holds the gene and promoter sequence.
- The replication control genes of bacterial plasmids face selection at two conflicting levels.
- We note, however, that few if any of the genes borne by bacterial plasmids are under strong positive selection at all times.

Origin

1950s: from plasma + -id².

Definition of plasmid in US English:

plasmid

nounˈplæzmɪdˈplazmid

Biology

A genetic structure in a cell that can replicate independently of the chromosomes, typically a small circular DNA strand in the cytoplasm of a bacterium or protozoan. Plasmids are much used in the laboratory manipulation of genes.
Compare with episome
Example sentencesExamples
- Conjugative plasmids can mediate gene transfer between bacterial taxa in diverse environments.
- We note, however, that few if any of the genes borne by bacterial plasmids are under strong positive selection at all times.
- For sporulation, diploid cells with plasmids were first grown in selective media.
- The bacterium contains a plasmid, a circular piece of DNA that holds the gene and promoter sequence.
- The replication control genes of bacterial plasmids face selection at two conflicting levels.

Origin

1950s: from plasma + -id.

单词	plasmid
释义	Definition of plasmid in English: plasmid noun ˈplazmɪdˈplæzmɪd Biology A genetic structure in a cell that can replicate independently of the chromosomes, typically a small circular DNA strand in the cytoplasm of a bacterium or protozoan. Plasmids are much used in the laboratory manipulation of genes. Compare with episome Example sentencesExamples Conjugative plasmids can mediate gene transfer between bacterial taxa in diverse environments. For sporulation, diploid cells with plasmids were first grown in selective media. The bacterium contains a plasmid, a circular piece of DNA that holds the gene and promoter sequence. The replication control genes of bacterial plasmids face selection at two conflicting levels. We note, however, that few if any of the genes borne by bacterial plasmids are under strong positive selection at all times. Origin 1950s: from plasma + -id². Definition of plasmid in US English: plasmid nounˈplæzmɪdˈplazmid Biology A genetic structure in a cell that can replicate independently of the chromosomes, typically a small circular DNA strand in the cytoplasm of a bacterium or protozoan. Plasmids are much used in the laboratory manipulation of genes. Compare with episome Example sentencesExamples Conjugative plasmids can mediate gene transfer between bacterial taxa in diverse environments. We note, however, that few if any of the genes borne by bacterial plasmids are under strong positive selection at all times. For sporulation, diploid cells with plasmids were first grown in selective media. The bacterium contains a plasmid, a circular piece of DNA that holds the gene and promoter sequence. The replication control genes of bacterial plasmids face selection at two conflicting levels. Origin 1950s: from plasma + -id.
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