Fred Griffith's Experiments with Two Strains of Streptococcus Pneumoniae

Multiple Choice

Fred Griffith's experiments with two strains of Streptococcus pneumoniae

A) resulted in a vaccine against bacterial pneumonia.
B) demonstrated that rough (R) bacteria cause pneumonia.
C) provided evidence that genetic material from one bacterial strain can be transferred to that of another strain.
D) demonstrated that mice can transform harmless bacteria into pathogenic bacteria.
E) demonstrated that a harmless, smooth bacterial strain can be transformed into a lethal, rough bacterial strain.