MULTIPLICATION OF BACTERIOPHAGE1

MULTIPLICATION OF BACTERIOPHAGE1 -...

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MULTIPLICATION OF BACTERIOPHAGES The basic mechanism for viral multiplication is similar for all viruses. We have the best  understanding of life cycles of the bacteriophages. Once a phage has entered a cell, there are two  possibilities for the next steps. These are known as the lytic cycle and the lsyogenic cycle. The  best understood phages are the ones called T-even phages of  Escherichia coli , and these are used  as examples.   1. The lytic cycle---in this cycle, the virus multiplies within the host cell, which then dies and  releases the new viral particles. This occurs in 5 steps:         a. Attachment---the phage and the susceptible bacterial cell accidentally bump into each  other. An attachment site on the virus attaches to a complementary receptor site on the bacterial  cell wall. Weak chemical bonds are formed between the attachment site and the receptor.  This is 
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MULTIPLICATION OF BACTERIOPHAGE1 -...

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