NURSING ANM AND GNM

NURSING EXAM QUESTIONS

MICROBIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the 1st step of virus infection?
A
Entry
B
Attachment
C
Replication
D
Assembly
Explanation: 

Detailed explanation-1: -The first stage is entry. Entry involves attachment, in which a virus particle encounters the host cell and attaches to the cell surface, penetration, in which a virus particle reaches the cytoplasm, and uncoating, in which the virus sheds its capsid.

Detailed explanation-2: -The viral life cycle can be divided into several major stages: attachment, entry, uncoating, replication, maturation, and release.

Detailed explanation-3: -The first stage, attachment, involves viral proteins binding to the host cell surface. There, they interact with receptors specific to them and their host cells. The specificity of viral attachment is a key decider of the range of hosts a virus can affect. This is also known as the tropism of a virus.

Detailed explanation-4: -Attachment. Penetration. Uncoating. Replication. Assembly. Maturation. Release.

There is 1 question to complete.