Griffith

Griffith’s experiment demonstrated that bacteria can transfer genetic information through a process called transformation. He showed that harmless bacteria could acquire traits from dead, disease-causing bacteria, making them pathogenic. This discovery revealed that genetic material can be passed between bacteria without reproduction, fundamentally advancing understanding of genetics. Griffith's work was crucial in showing that DNA can carry genetic information, laying the groundwork for later discoveries about DNA’s role as the genetic material in all living organisms.