In his transformation experiments what did Griffith observe?

Question

Jeremiah Allen · Accepted Answer

Griffith concluded that Bacteria were able to absorb genetic material from dead bacteria.

Griffith gave mice lethal bacterial injections. The rodents perished. Griffith administered both dead, lethal bacteria and innocuous bacteria to mice through injection. This observation suggested that bacteria were capable of absorbing genetic material because the mice perished. Griffith used only safe bacteria to inject mice. The rodents survived. Griffith gives mice injections of dead bacteria that have the potential to kill them. The rodents survived. This experiment started the source for what this genetic material might be and showed that there was some genetic material in the bacteria that could be absorbed by living bacteria.

Madeline Andrews · Answer

undefined Griffith observed that when he injected a mixture of heat-killed virulent bacteria and live non-virulent bacteria into mice, the mice died, and live virulent bacteria were recovered from their bodies. This suggested that something in the heat-killed bacteria had transformed the non-virulent bacteria into a virulent form.