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The final proof for DNA as the genetic materialcame from the experiments of :
- a)Hershey and Chase
- b)Avery, Mcleod and McCarty
- c)Hargobind Khorana
- d)Griffith
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
The final proof for DNA as the genetic materialcame from the experimen...
Hershey and Chase Experiment
The Hershey and Chase experiment provided the final proof for DNA as the genetic material. The experiment was conducted in 1952 by Alfred Hershey and Martha Chase.
Methodology
The experiment was conducted on bacteriophages. Bacteriophages are viruses that infect bacteria. They consist of a protein coat and genetic material, either DNA or RNA.
Hershey and Chase used two different radioactive isotopes to label the bacteriophages. The protein coat of the bacteriophages was labeled with radioactive sulfur-35, while the DNA of the bacteriophages was labeled with radioactive phosphorus-32.
The labeled bacteriophages were allowed to infect bacteria. After infection, the bacteriophages were separated from the bacteria by a process called centrifugation.
Results
The results of the experiment showed that only the radioactive phosphorus-32 was found inside the bacteria. This indicated that the DNA of the bacteriophages was transferred to the bacteria during infection, and not the protein coat.
Conclusion
The Hershey and Chase experiment provided the final proof that DNA is the genetic material. The experiment showed that the DNA of the bacteriophages was transferred to the bacteria during infection, and not the protein coat. This indicated that DNA, and not protein, carried the genetic information that was passed from one generation to the next.
The Hershey and Chase experiment provided the final proof for DNA as the genetic material. The experiment was conducted in 1952 by Alfred Hershey and Martha Chase.
Methodology
The experiment was conducted on bacteriophages. Bacteriophages are viruses that infect bacteria. They consist of a protein coat and genetic material, either DNA or RNA.
Hershey and Chase used two different radioactive isotopes to label the bacteriophages. The protein coat of the bacteriophages was labeled with radioactive sulfur-35, while the DNA of the bacteriophages was labeled with radioactive phosphorus-32.
The labeled bacteriophages were allowed to infect bacteria. After infection, the bacteriophages were separated from the bacteria by a process called centrifugation.
Results
The results of the experiment showed that only the radioactive phosphorus-32 was found inside the bacteria. This indicated that the DNA of the bacteriophages was transferred to the bacteria during infection, and not the protein coat.
Conclusion
The Hershey and Chase experiment provided the final proof that DNA is the genetic material. The experiment showed that the DNA of the bacteriophages was transferred to the bacteria during infection, and not the protein coat. This indicated that DNA, and not protein, carried the genetic information that was passed from one generation to the next.
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The final proof for DNA as the genetic materialcame from the experimen...
Hershey-Chase experiment convince the world that DNA was the genetic material. ... After a phage particle attaches to a bacterium, its DNA enters through a tiny hole while its protein coat remains outside.
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The final proof for DNA as the genetic materialcame from the experiments of :a)Hershey and Chaseb)Avery, Mcleod and McCartyc)Hargobind Khoranad)GriffithCorrect answer is option 'A'. Can you explain this answer?
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