5: Microbial Genetics
- Page ID
- 105661
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- 5.4: Plasmids
- A plasmid is a small DNA molecule that is physically separate from, and can replicate independently of, chromosomal DNA within a cell. Plasmids are commonly used to multiply (make many copies of) or express particular genes.
Thumbnail: DNA Double Helix. (Public Domain; Apers0n).