phage
Noun
Meaning
a virus that is parasitic (reproduces itself) in bacteria
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phage uses the bacterium's machinery and energy to produce more phage until the bacterium is destroyed and phage is released to invade surrounding bacteria
An altogether different phage type, the filamentous phages, make the host cell continually secrete new virus particles.
All of the known temperate phages employ one of only three different systems for their lysogenic cycle: lambda-like integration/excision, Mu-like transposition or the plasmid-like partitioning of phage N15.
An example of a bacteriophage known to follow the lysogenic cycle and the lytic cycle is the phage lambda of E. coli.
Animals are first treated with suspected mutagen, the mouse DNA is then isolated and the phage segment recovered and used to infect E. coli.
As soon as the cell is destroyed, the phage progeny can find new hosts to infect.