Plasmid - National Human Genome Research Institute
1 day ago · Plasmids are physically separate from chromosomal DNA and replicate independently. They typically have a small number of genes — notably, some associated with …
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 …
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 …
What Is a Plasmid in Biology and How Does It Work?
Oct 4, 2025 · Plasmids are small, circular DNA molecules found within the cells of many microorganisms, separate from the cell’s main chromosomal DNA. They can replicate …
Plasmid | DNA replication, genetic engineering, cloning ...
Oct 14, 2025 · Plasmids are circular deoxyribonucleic acid (DNA) molecules that replicate independently of the bacterial chromosome. They are not essential for the bacterium but may …
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 …
Plasmids- Definition, Properties, Structure, Types, Functions ...
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 …