Why did Hershey and Chase use radioactive elements in their experiments?

When that cell splits, hundreds of new viruses are released. What were Hershey and Chase trying to determine in their experiments? They used radioactive isotopes of phosphorus-32 and sulfur-35 as markers so they could trace the proteins and DNA to see what they were doing to the cell.

How did Hershey and Chase prove that DNA is the genetic material?

Complete answer: Two scientists Alfred Hershey and Martha Chase proved that DNA is a genetic material by working on bacteriophages. After doing this, they observed that the viruses which were grown in radioactive phosphorus contained radioactive DNA. There was no presence of radioactive protein.

Why did Hershey and Chase used radioactive Sulphur and radioactive phosphorus in their experiment?

Hershey and Chase experimented with radioactively labeled phosphorus and sulphur to determine that DNA and not protein is the genetic material.

Why did Hershey and Chase alternatively choose to use radioactive S and radioactive P?

Hershey and Chase used radioactive isotopes of sulfur and phosphorous to help them test whether protein or DNA was responsible for genetic material. The two noticed that the T2 that infected the e. coli bacteria could rapidly reproduce itself and then reprogram the cell to infect other cells.

Why did Hershey and Chase use the isotopes 32P and 35S in their experiments quizlet?

Both preparations of infected bacteria would exhibit radioactivity. Why did Hershey and Chase use the isotopes 32P and 35S in their experiments? The bacteria were in the pellet, and many contained the radioactive viral DNA.

Why did Hershey and Chase use S35 and P32 isotopes in their experiment?

Hershey and Chase used the isotopes S35 and P32 to demonstrate that DNA is the genetic material in some viruses while Meselson and Stahl used the isotope N15 to demonstrate semi-conservative DNA replication. P32 is denser that standard P, and is found in DNA so possibly could be used to label new strands of DNA..

Which radioactive isotope is used by Hershey and Chase?

Hershey and Chase experiment is based on the fact that DNA contains phosphorus and similarly sulphur is present in proteins but not in DNA. They incorporated radioactive isotope of phosphorus (32P) into phage DNA and that of sulphur (35S) into proteins of a separate phage culture.

How did Hershey and Chase differentiate between DNA and protein while proving that DNA is the genetic material?

Hershey and Chase worked with bacteriophage and E. coli to prove that DNA is the genetic material. They used different radioactive isotopes to label DNA and protein coat of the bacteriophage. Hence, it was proved that DNA is the genetic material as it was transferred from virus to bacteria.

Why did Hershey and Chase use radioactive Sulphur and radioactive phosphorus in their experiment write the conclusion they arrived at and how?

a)Hershey and Chase grew some viruses on a medium that contained radioactive phosphorus and some others on a medium that contained radioactive sulfur. Viruses grown in the presence of radioactive phosphorus contained radioactive DNA but not radioactive protein because DNA contains phosphorus but protein does not.

What would Hershey and Chase have concluded if they had found radioactive sulfur instead of phosphorus in infected bacteria cells?

If Hershey and Chase had found radioactive sulfur instead of phosphorus in infected bacteria cells they would have concluded that the protein coat of the bacteriophage was involved in the transformation of the E. coli.

Why couldnt Hershey and Chase use radioactive nitrogen?

Why couldn’t Hershey and Chase have used radioactive nitrogen in their experiment? Hershey and Chase wanted to distinguish between DNA and protein. Both DNA and protein molecules contain nitrogen, so both DNA and protein would be labeled by radioactive nitrogen.

Why did Hershey and Chase not choose to use radioactive carbon or nitrogen instead?

Evaluate Hershey and Chase’s decision to use radioactive phosphorous and sulfur for their experiments. No they couldn’t have used carbon or oxygen because the radioactivity would be everywhere. There is canon and oxygen in both DNA and protein.

How did chase and Hershey prove that DNA is the genetic material?

Hershey and Chase used radioactive isotopes of Phosphorus and Sulphur for proving that DNA indeed is the genetic material, even in viruses. In their experiment, several generations of E. coli were grown in media containing 32P and 35S to produce viral progeny containing these isotopes in their DNA and Proteins.

What are the experiments of Hershey and Chase?

Experiments of Hershey and Chase. We know about Griffith’s experiment and experiments that followed to discover the hereditary material in organisms. Based on Griffith’s experiment, Avery and his team isolated DNA and proved DNA to be the genetic material. But it was not accepted by all until Hershey and Chase published their experimental results.

Which experiment proved that DNA is the genetic material?

This experiment by the trio researchers proved DNA to be the genetic material. 3. Hershey and Chase (1952) Alfred Hershey and Martha Chase studied the role of DNA in genetic information transfer by experimenting with T2 Bacteriophage.

How did Hershey and Chase infect the E coli by radioactivity?

After radioactive labelling of the phage DNA and protein, Hershey and Chase infected the bacteria, i.e. E.coli by using the radioactively labelled T-2 phage. In batch-1, T-2 phage tagged with S 35 and in batch-2 T-2 phage labelled with P 32 were allowed to infect the bacterial cells of E.coli.