Hershey and Chase started with a virus called a

. They used the radioactive isotope sulfur-35 to label the


of the virus and phosphorus-32 to label the


of the virus. They allowed the tagged virus to infect bacteria and studied the results. Hershey and Chase found that the only radioactive isotope within the bacteria was

. This result indicated that the genetic material inserted by the virus to infect the bacteria was

.


Answer Choices

DNA


bacteriophage


protein


32P


35S