Question

We sometimes are able to generate antibodies (immune system proteins) that bind to and cover up some of the proteins on the outermost portion of a virus while it is in the bloodstream. This renders the virus unable to reproduce. Which step of viral replication are antibodies directly preventing?

1) Attachment
2) Penetration
3) Uncoating
4) Replication
5) Assembly
6) Release

Answer 1

Option 1). Antibodies prevent the attachment of a virus to a host cell by binding to its surface proteins, which is the initial and crucial step in viral replication.

Step-by-step explanation:

Antibodies directly stop a virus from attaching to the host cell when they bind to and obscure proteins on the virus's outermost portion. This occurs during the attachment stage of viral replication, when the virus takes advantage of binding sites on the cell surface by using particular glycoproteins in its coat. Antibodies can neutralize or inhibit the virus's ability to enter the host cell once they attach to its antigens. This stops the virus from going through subsequent stages like penetration, uncoating, replication, assembly, and release.