The controversy regarding the genetic materia | vedclass

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(D) The experiments conducted by Alfred Hershey and Martha Chase in $1952$ provided unequivocal evidence that $DNA$ is the genetic material. They work

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Hershey and Chase

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(D) The experiments conducted by Alfred Hershey and Martha Chase in $1952$ provided unequivocal evidence that $DNA$ is the genetic material. They worked with bacteriophages,which are viruses that infect bacteria. They grew some viruses in a medium containing radioactive phosphorus $(^{32}P)$ to label $DNA$ and others in a medium containing radioactive sulfur $(^{35}S)$ to label proteins. After allowing the phages to infect $E. coli$ bacteria,they agitated the mixture in a blender and centrifuged it to separate the viral coats from the bacterial cells. They found that radioactive phosphorus $(^{32}P)$ was present inside the bacterial cells,indicating that $DNA$ had entered the bacteria,while radioactive sulfur $(^{35}S)$ remained in the supernatant,indicating that proteins did not enter. This experiment finally resolved the long-standing debate about whether $DNA$ or protein was the genetic material.

The controversy regarding the genetic material was resolved after the experiments of which scientists?

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