9. What are bacteriophages?

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Bacteriophages are viruses
in parasitism of . They are used
genetic engineering as
cloning vehicles to recombinant
DNA into . They were also
in the former Union to treat

have a polyhedron-like
and DNA as material. The
“head” the virus is to a tail
ends in small that help the
to attach to bacterial cell wall
to injectits genetic into
the host.