SCIENCE
VIRUS AND BACTERIA
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
D C B A
|
|
|
A B C D
|
|
|
C A B D
|
|
|
D A C B
|
Detailed explanation-1: -The virus life cycle could be divided into six steps: attachment, penetration, uncoating, gene expression and replication, assembly, and release.
Detailed explanation-2: -Step 1: Attachment: The virus attaches itself to the target cell. Step 2: Penetration: The virus is brought into the target cell. Step 3: Uncoating and Replication: The enveloped virus loses its envelope, and viral RNA is released into the nucleus, where it is replicated. Step 4: Assembly: Viral proteins are assembled.
Detailed explanation-3: -Most productive viral infections follow similar steps in the virus replication cycle: attachment, penetration, uncoating, replication, assembly, and release (Figure 1). Figure 1. The influenza reproductive cycle. In influenza virus infection, glycoproteins on the capsid attach to a host epithelial cell.
Detailed explanation-4: -Attachment. Penetration. Uncoating. Replication. Assembly. Maturation. Release.