In 1928,Frederick Griffith's experiments with Streptococcus pneumoniae suggested that
A)bacteria do not incorporate the DNA of other bacteria.
B)attenuated R (rough)bacteria easily revert to the wild type (virulent).
C)RNA was the genetic material.
D)heat-killed bacteria could somehow "transform" live bacteria.
E)protein was the genetic material.

Question

Quizplus · Accepted Answer

Griffith's experiments showed that when he mixed heat-killed virulent (smooth) bacteria with live non-virulent (rough) bacteria, the live bacteria became virulent. This suggested that the live bacteria had been "transformed" by something from the dead bacteria, which was later identified as DNA, not protein or RNA.

In 1928,Frederick Griffith's Experiments with Streptococcus Pneumoniae Suggested That