NEET > Biology Class 12 > Hershey Chase Experiment
Hershey Chase Experiment Video Lecture - Biology Class 12 - NEET
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FAQs on Hershey Chase Experiment Video Lecture - Biology Class 12 - NEET
| 1. What is the Hershey Chase experiment? |  |
Ans. The Hershey Chase experiment was a landmark study conducted in 1952 by Alfred Hershey and Martha Chase. They used bacteriophages, a type of virus that infects bacteria, to determine whether genetic material is composed of DNA or protein.
| 2. What was the purpose of the Hershey Chase experiment? | |
Ans. The main purpose of the Hershey Chase experiment was to investigate whether DNA or protein is the genetic material that is passed on from one generation to another in viruses.
| 3. How was the Hershey Chase experiment conducted? | |
Ans. In the Hershey Chase experiment, bacteriophages were labeled with different radioactive isotopes. The DNA of the phages was labeled with radioactive phosphorus-32, while the protein coat was labeled with radioactive sulfur-35. The labeled phages were then allowed to infect bacteria, and the researchers tracked the location of the radioactive isotopes to determine which component (DNA or protein) was passed on to the progeny.
| 4. What were the findings of the Hershey Chase experiment? | |
Ans. The Hershey Chase experiment provided strong evidence that DNA, and not protein, is the genetic material in viruses. The researchers observed that the radioactive phosphorus (representing DNA) was found inside the infected bacteria, while the radioactive sulfur (representing protein) remained outside the bacteria.
| 5. What is the significance of the Hershey Chase experiment? | |
Ans. The Hershey Chase experiment provided crucial evidence supporting the idea that DNA is the genetic material. This experiment paved the way for the discovery of the structure of DNA and the understanding of its role in heredity. It also confirmed that DNA is the molecule responsible for storing and transmitting genetic information in many organisms, including humans.
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