Both Antigenic Drift and Antigenic Shift Result in a New

question 91

Multiple Choice

Both antigenic drift and antigenic shift result in a new strain of viruses.Which statement describes a key difference between antigenic drift and antigenic shift?

• A) Antigenic shift takes place gradually,whereas antigenic drift occurs rapidly.
• B) Antigenic drift takes place gradually,whereas antigenic shift occurs rapidly.
• C) Antigenic drift occurs when the virus replicates.
• D) Both antigenic shift and antigenic drift take place gradually.
• E) Antigenic drift takes place gradually and occurs when the virus replicates.

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