how it was known that DNA is the genetic material and not protein or RNA explain in 300 words
Answers
Explanation:
Dna is genetic material and Rna is a protein ... it was e best experimentally proved by the hersey and marta chase experiment . They worked with bacteriophages - viruses that infects bacteria . They grew that virus on the radioactive phosphorous and radioactive sulphur medium.
The viruses which grown with radioactive phosphorous didn't have protein since Dna contains phosphorus . Viruses grown on radioactive sulphur medium have radioactive protein not DNA since DNA doesn't contain sulphur. The radioactive phages were allowed to infect the bacteria E.coli. As the infection progressed the viral coats were removed from the bacteria by blending . Then centrifiguation used to seprate the viral particles from tge bacteria.
Bacteria infect with viruses that have radioactive dna were radioactive while bacteria infected with viruses that have radioactive protein were not radioactive.
hence this experiment showed that Dna is genetic material..
hoped that it helps u....thnks for asking