In Griffith's experiments,

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In Griffith's experiments, mice infected with a combination of heat-killed virulent bacteria and live nonvirulent bacteria developed pneumonia and died. This provided evidence for bacterial transformation, where the nonvirulent bacteria had been transformed into a virulent form by the presence of genetic material from the virulent bacteria. Option A is incorrect as it refers to the outcome of an experiment conducted by Frederick Novy, not Griffith. Option B is incorrect as it is a description of Avery, MacLeod, and McCarty's experiments, which built on Griffith's findings. Option D is incorrect as it refers to a control group that was not part of Griffith's experiments.

In Griffith's Experiments