nBacteriophages ( phages ) are obligate intracellular parasites that multiply inside bacteria by making use of some or all of the host biosynthetic machinery . They are viruses that infect bacteria.
Composition of Bacteriophage
nNucleic acid: either DNA or RNA but not both
nds DNA, ss RNA, ss DNA
nunusual or modified bases
nencode 3-5 gene products to over 100 gene products
nProtein: function in infection and protect the nucleic acid
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