Question

The experimental proof on the thermal stability of genetic material was first provided by experiments of ______.

Options

• Hershey and Chase

• Meselson and Stahl

• Frederick Griffith

• Jacob an Monod

Answer 1

The experimental proof on the thermal stability of genetic material was first provided by experiments of Frederick Griffith.

Explanation:

The experimental proof demonstrating the thermal stability of genetic material was first provided by C. Frederick Griffith in 1928. His transforming principle experiment showed that the substance responsible for converting non-virulent bacteria into a virulent form could withstand heat treatment and still remain active. This indicated the robust nature of the genetic material, later identified as DNA, which remained functional even after the heat-killing of the source cells.