Input (grade 13): The Hershey - Chase experiments were a series of experiments conducted in 1952 by Alfred Hershey and Martha Chase, confirming that DNA was the genetic material, which had first been demonstrated in the 1944 Avery - MacLeod - McCarty experiment.
Output (grade 12): The Hershey-Chase experiments were a series of experiments started in 1952 by Alfred Hershey and Martha Chase.