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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Definitions:

Fibroblasts

A type of cell found in connective tissue which produces collagen and other fibers.

Calcified Matrix

The hard, bone substance made when calcium salts deposit in the framework produced by osteoblasts.

Fibroblasts

A type of cell that is responsible for making the extracellular matrix and collagen, playing a critical role in wound healing and tissue repair.

Dense Regular

Connective tissue characterized by tightly packed collagen fibers aligned in a parallel arrangement, providing strength in one direction.