NEETBiologyBiomoleculesMCQ+4 / −1
If DNA contained sulfur instead of phosphorus and proteins contained phosphorus instead of sulfur, what would have been the outcome of Hershey and Chase experiment?
- ARadioactive phosphorus in bacterial cells
- BNo radioactive sulfur in bacterial cells
- CBoth radioactive sulfur and phosphorus in bacterial cells
- DRadioactive sulfur in bacterial cells
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Correct answer: D
In Hershey-chase experiment when radioactive sulphur was in protein capsule and radioactive phosphorus was in DNA then, no sulphur radioactivity detected in the cells as protein coat remains outside the bacterial cell after infection.
In the given question, sulphur is shown in the DNA and phosphorus in the protein coat. Hence radioactive sulphur will be seen in bacterial cells.
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