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.


Answer: c

Biology & Microbiology

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