The ________ was labeled using the radioisotope 32P in the Hershey-Chase experiments.
A) RNA
B) DNA
C) protein
D) carbohydrates

Question

Quizplus · Accepted Answer

The Hershey-Chase experiments were conducted to determine whether DNA or protein was the genetic material that bacteriophages inject into bacteria. To do this, they labeled the bacteriophages either with radioactive sulfur (which labels proteins) or radioactive phosphorus (which labels DNA). The radioactive phosphorus ended up in the bacterial cells, indicating that DNA was the genetic material being transferred, and not protein or RNA. Therefore, the best choice is B, DNA.

The ________ Was Labeled Using the Radioisotope 32P in the Hershey-Chase