The multiplication of viruses takes place in the following steps:
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The virus attaches itself to the host cell
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It injects the DNA into the host cell
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Destruction of host cell DNA takes place with the DNase of phage. Replication of phage DNA takes place
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Transcription of phage m-RNA on phage DNA and protein synthesis
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Formation of protein coat around the phage DNA
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Production of mature phages and their release by lysis of the host cell
