#Everyone is a Writer

QuestionWhat's the difference between a plasmid and a vector?


  • PLASMIDS are extrachromosomal DNA molecules that can replicate independently. They are mostly circular and double-stranded. They carry beneficial genes responsible for  Antibiotic resistance, degrading Aromatic compounds etc.. eg: Ti Plasmids(Tumour inducing)

  • VECTORS, These are vehicles, essentially used to deliver Nucleic acids(mostly DNA) to the desired host. eg: Bacteriophages, Bacterial artificial chromosomes(BAC)

Note: Plasmids are the commonly used vectors because of their desired characteristics. If the size of the foreign DNA is large other vectors like BAC and YAC are used.


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