Engineered genomes of bacterial viruses that contain unique restriction sites and the genes necessary for host lysis are called bacteriophage or phage
What is bacteriophage ?
A bacteriophage, also called a phage or a duploid virus, is a virus that infects and replicates within bacteria and archaea. The word is a combination of the word "bacteria" and the Greek verb "v" (to consume).
Bacteriophages are harmless to humans yet infect microorganisms. To replicate, they enter a bacterium, multiply there, and then rupture the bacterial cell to release the new viruses. As a result, bacteriophages eliminate bacteria.
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