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Which Is More Likely to Happen-Antigenic DRIFT, or Antigenic SHIFT-And

Question 79

Multiple Choice

Which is more likely to happen-antigenic DRIFT, or antigenic SHIFT-and why?

A) Antigenic DRIFT, since infection with only a single virus strain is required, and the random mutations happen as the virus replicates in the infected person's cells.
B) Antigenic SHIFT, since infection with only a single virus strain is required, and the random mutations happen as the virus replicates in the infected person's cells.
C) Antigenic DRIFT, since infection with only a single virus strain is required and random mutations occur more readily in this situation than if two virus strains are present.
D) Antigenic SHIFT, since multiple viruses in a cell at once means more RNA polymerase to copy the RNA, and therefore more possibilities for mistakes to be made (leading to mutations) .
E) Antigenic drift and antigenic shift occur at the same frequency. Genetic change is just as likely to occur if one viral strain or more than one strain is/are present.

Correct Answer: