Question

In: Biology

Explain similarities and differences between animal viruses and bacteriphages, also use HIV as an example of...

Explain similarities and differences between animal viruses and bacteriphages, also use HIV as an example of its similarities and differences in replication.

Solutions

Expert Solution

stage bacteriophages(bacteria infecting viruses) Animal viruses

attachment

and entry

tail fibres attach to cell wall through protein and then it injects the viral nucleic acid into the bacteria attaches via surface glycoproteins to plasma membrane receptors on host cell surface eg CD45 in HIV, virus entry is through membrane fusion of endocytosis etc.
uncoating protein coat remain outside thus not required enzymatic degradation
biosynthesis

in bacterial cytoplasm

no such specific enzyme requires for making RNA

in nucleus (DNA viruses) and in cytoplasm (RNA viruses)

some viruses like HIV requires reverse transcriptase system for making RNA.

chronic infection lysogeny latency, slow infections like HIV which takes 10-12 years in most cases to generate symptoms in some case, usually longer incubation period.
release lysis of host cell budding in enveloped viruses, non enveloped viruses rupture plasma membrane.

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