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.

Question

Quizplus · Accepted Answer

Griffith's experiments showed that genetic material from the heat-killed virulent strain could transform the non-virulent strain into a virulent form, indicating the transfer of genetic material.

Fred Griffith's Experiments with Two Strains of Streptococcus Pneumoniae