Question

Can someone help me with this please

The Hershey-Chase experiment proved that DNA was the hereditary material because
radioactive phosphorus in viral proteins was shown not to enter bacterial cells.
radioactive phosphorus in viral DNA was shown to enter bacterial cells.
radioactive sulfur in viral proteins was shown to enter bacterial cells.
radioactive sulfur in viral DNA was shown not to enter bacterial cells.

Answer 1

The correct option is B. 80% of the radioactive phosphorus used in the experiment entered the cell showing that DNA was the hereditary material.