NEETZoologyMolecular Basis of Inheritance
How did Hershey and Chase separate the virus particles from the bacteria in their experiments?
Options
- ABy centrifugation
- BBy filtration
- CBy chromatography
- DBy electrophoresis
Correct answer
A. By centrifugation
Step-by-step solution
Similarly, viruses grown on radioactive sulfur contained radioactive protein but not radioactive DNA because DNA does not contain sulfur. Radioactive phages were allowed to attach to E. coli bacteria. Then, as the infection proceeded, the viral coats were removed from the bacteria by agitating them in a blender. The virus particles were separated from the bacteria by spinning them in a centrifuge. Bacteria which were infected with viruses that had radioactive DNA were radioactive, indicating that DNA was the materi