They determined that a protective protein coat was formed around the bacteriophage , but that the internal DNA is what conferred its ability to produce progeny inside a bacterium .
Hershey and Chase concluded that DNA , not protein , was the genetic material .
Hershey determined that a protective protein coat was formed around the bacteriophage , but that the internal DNA is what conferred material 's ability to produce progeny inside a bacterium .
Hershey and Chase concluded that DNA , not protein , was the genetic material .