(a)Why did Hershey and Chase radioactive sulfur and radioactive phosphorus in
their experiment?
(b) Write the conclusion they arrived at and how

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Solution

Dear student,
Protein in bacteriophage was labelled with S³⁵while DNA was labelled with P³². This is because sulphur is present in the protein coat while Phosphorus is a constituent of the Phosphate groups present in DNA.

While infecting bacteria in hershey and chase experiment DNA entered the bacterial cell therefore radioactive labelled DNA was recovered but since protein did not enter bacterial cell therefore radioactivity in protein was lost. Actually radioactivity in protein was recovered in supernatant. Therefore radioactivity in bacterial cell was recovered due to DNA labelled with P³².

The conclusion of the Hershey Chase Experiment is that DNA is the genetic material.

Regards

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(a)Why did Hershey and Chase radioactive sulfur and radioactive phosphorus in their experiment? (b) Write the conclusion they arrived at and how

(a)Why did Hershey and Chase radioactive sulfur and radioactive phosphorus in
their experiment?
(b) Write the conclusion they arrived at and how