Plasmid - Wikipedia
Plasmid Diagram of a bacterium showing chromosomal DNA and plasmids (Not to scale) A plasmid is a small, extrachromosomal DNA molecule within a cell that is physically separated …
Plasmid | DNA replication, genetic engineering, cloning ...
Oct 14, 2025 · Plasmid, in microbiology, an extrachromosomal genetic element that occurs in many bacterial strains. Plasmids are circular deoxyribonucleic acid (DNA) molecules that …
Plasmid - National Human Genome Research Institute
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 …
Plasmids- Definition, Properties, Structure, Types, Functions ...
Mar 13, 2022 · The term Plasmid was coined by Joshua Lederberg in 1952. Plasmids are important as genetic tools, which are used to introduce, manipulate or delete certain genes …
Plasmids 101: What is a plasmid? - Addgene
Jan 14, 2014 · What is a plasmid? At their most basic level, plasmids are small circular pieces of DNA that replicate independently from the host's chromosomal DNA. They are mainly found in …
What Is a Plasmid in Biology and How Does It Work?
Oct 4, 2025 · These modified plasmids are used in molecular cloning, where specific genes are inserted into the plasmid structure. Once a gene is incorporated, the recombinant plasmid can …
What is a Plasmid? | Ask A Biologist
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 …