9 Describe what happens during this step of
viral replication.

This figure shows uncoating step of viral replication where protein coat is shed off and genetic material is headed to nucleus for replication.

Explanation:

The replication of virus takes place in the host cell as they uses the host's machinery for this purpose.

The stages of virus replication are:

Attachment

penetration to host cell

uncoating of capsid

replication

assembly of virions

lysis of cell to release virion.

The step shown in the diagram is of uncoating phase of viral replication.

In the uncoating phase of replication of virus the protein coat or capsid is removed by the enzymatic activity of the virus or can be by host too. This shedding of coat causes nucleic acid of virus to be released into the host cell. The nucleic acid or genetic material or genomic DNA is taken to nucleus where the next step is replication.

Sometimes the entire nucleocapsid is targeted to nucleus and uncoating takes place there only.

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