12-21-2007, 06:38 AM
A 50-year-old man who recently immigrated to the USA from Russia develops fever, swelling of the neck, and difficulty swallowing. His vaccination history is uncertain. Examination of the throat shows a gray membrane across the pharynx. The pathogen responsible for this infection most likely acquires its virulence through which of the following genetic events?
A) Aquisition of a transposon
B) Chromosomal mutation
C) Conjugation
D) Recombination
E) Transduction
A) Aquisition of a transposon
B) Chromosomal mutation
C) Conjugation
D) Recombination
E) Transduction