Question

Which of the following is correct about the Hershey chase experiment

A.Play infected viruses with bacterial cells
B. They discovered that the pro team from the virus enter the cell while the DNA stayed behind
C.They determined that the infected bacteria contain tags from the virus’s
DNA
D. They found no way for hereditary material to be transferred between viruses and bacteria

Answer 1

The correct answer will be option C (infected bacteria contained tags from the virus DNA).

Step-by-step explanation:

Alfred Hershey and Martha Chase conducted the experiments to know whether protein or DNA was the genetic material of the cell.

Bacteriophage viruses were grown in 2 mediums containing- radioactive sulfur (³⁵S) and radioactive phosphorus (³²P) and allowed to infect bacterium (E. coli) and then separated them via centrifugation .

They found that bacterial pellet were infected by the ³²P –viruses but not ³⁵S viruses as phosphorus is present in the DNA but absent in proteins which showed that virus transferred its DNA to the bacteria.

Thus, option C is the correct answer.

Answer 2

C.They determined that the infected bacteria contain tags from the virus’s
DNA.
The experiment involved adding in isotopes to label viruses and inserting them into bacteriophages. The Hershey and Chase experiment found the radioactivity sediment IN the bacteria (versus staying behind in the solution) concluding that the DNA had indeed entered the bacteria.