What was the key finding of the Hershey and Chase experiment?
Hershey and Chase demonstrated that DNA, not protein, is the genetic material using bacteriophages labeled with radioactive isotopes. This follows from NCERT principle where relation explains outcome clearly for students.
Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Biology - Botany portion covering relevant concept, Topic: Plant structure, physiology and applications.