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  1. 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 …

  2. 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 …

  3. Plasmids- Definition, Properties, Structure, Types, Functions, …

    Mar 13, 2022 · Plasmids are important as genetic tools, which are used to introduce, manipulate or delete certain genes from the host cell. They are extra chromosomal DNA fragments …

  4. 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 …

  5. What Do Plasmids Do and What Are Their Functions?

    Jul 29, 2025 · Plasmids are widely used in research to study gene function and regulation. By inserting a gene into a plasmid and introducing it into a cell, researchers can observe the …

  6. 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 …

  7. Plasmids: Properties, Types, and Functions - Microbe Online

    Plasmids can be constructed artificially (artificial plasmids are called vectors) and are used to introduce foreign DNA into another cell of interest. Plasmids play crucial roles in genetic …

  8. Plasmid: Definition, Types, Function And Significance

    Jun 2, 2024 · Plasmids are small, circular pieces of DNA that are found in both prokaryotic and eukaryotic cells. These pieces of DNA are important because they can confer special abilities …

  9. Plasmid | DNA replication, genetic engineering, cloning | Britannica

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

  10. 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.