
Plasmid - Wikipedia
Artificial plasmids are widely used as vectors in molecular cloning, serving to drive the replication of recombinant DNA sequences within host organisms. In the laboratory, plasmids may be introduced …
Plasmid - National Human Genome Research Institute
2 days ago · Scientists use recombinant DNA methods to splice genes that they want to study into a plasmid. When the plasmid copies itself, it also makes copies of the inserted gene. A plasmid is a …
Plasmid - Definition, Types and Functions | Biology Dictionary
Apr 7, 2019 · Plasmids have many different functions. They may contain genes that enhance the survival of an organism, either by killing other organisms or by defending the host cell by producing …
Plasmid | DNA replication, genetic engineering, cloning | Britannica
Plasmids are circular deoxyribonucleic acid (DNA) molecules that replicate independently of the bacterial chromosome. They are not essential for the bacterium but may confer a selective advantage.
Plasmids 101: What is a plasmid? - Addgene
Jan 14, 2014 · 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 bacteria, but also exist …
Plasmids- Definition, Properties, Structure, Types, Functions, Examples
Mar 13, 2022 · Plasmids are small circular DNA fragments, double-stranded, self-replicating extra chromosomal structures found in many microorganisms. The term Plasmid was coined by Joshua …
7.4A: Introduction to Plasmids - Biology LibreTexts
Similar to viruses, plasmids are not considered by some to be a form of life. Unlike viruses, they are naked DNA and do not encode genes necessary to encase the genetic material for transfer to a new …
What Is a Plasmid in Biology? Its Function and Uses
Aug 23, 2025 · Understand plasmids, from their natural biological roles to their critical use as versatile tools in modern genetic engineering and scientific research.
PLASMIDS - Microbiology Class
Feb 17, 2025 · Plasmids are extrachromosomal DNA molecules found in both eukaryotic and prokaryotic microorganisms that have the ability to replicate independently. In prokaryotes, plasmids are found in …
What is a Plasmid? | Ask A Biologist
Apr 12, 2010 · Plasmids are autonomous molecules and exist in cells as extrachromosomal genomes, although some plasmids can be inserted into a bacterial chromosome, where they become a …