A plasmid is a small, extrachromosomal DNA molecule within a cell that is physically separated from chromosomal DNA and can replicate independently.

2 days ago · A plasmid is a small circular DNA molecule found in bacteria and some other microscopic organisms. Plasmids are physically separate from chromosomal DNA and replicate independently.

Oct 14, 2025 · Plasmid, in microbiology, an extrachromosomal genetic element that occurs in many bacterial strains. Plasmids are circular deoxyribonucleic acid (DNA) molecules that replicate …

A plasmid is a closed circular molecule of double-stranded DNA that range in size from 1 to >200 kb. Plasmids are found in various bacterial species, where they behave as additional genetic units …

Aug 23, 2025 · A plasmid is a small, circular, extra-chromosomal DNA molecule found within the cells of many microorganisms. Unlike the main chromosomal DNA, which carries the fundamental genetic …

Naked plasmid DNA is an attractive nonviral gene vector because of its inherent simplicity and because it is easily produced in bacteria and manipulated using standard recombinant DNA techniques.

Apr 12, 2010 · A plasmid is an independent, circular, self-replicating DNA molecule that carries only a few genes. The number of plasmids in a cell generally remains constant from generation to generation.

What is a Plasmid? Definition of Plasmids: Plasmids are small, circular DNA molecules. They exist separately from the main DNA in cells and can copy themselves. They are predominantly found in …

Plasmids are circular pieces of DNA found in bacterial cells that replicate independently from the host’s chromosome. They’re powerful and ubiquitous tools that touch nearly all areas of biological research.

A plasmid is a small, circular, double-stranded DNA molecule that is distinct from a cell's chromosomal DNA. Plasmids naturally exist in bacterial cells, and they also occur in some eukaryotes.