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Which radioactive tracer showed up in the bacteria that led Hershey and Chase to their conclusion that DNA not Protein was the genetic material?
Wiki User
∙ 6y ago
According to my bio book, I think it's Alfred Hershey and Martha Chase, in the HERSHEY-CHASE experiment.
Wiki User
∙ 12y ago
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What scientist conducted tests on extracts made of bacteria to show that the genetic material in bacteria is DNA?
It is not Hershey and Chase !! It is Oswald Avery that conducted these experiments!
What did hershey and chase discover after the p-labeled phages infected the bacteria most of the radioactive phosphorous found in the layer containing?
it was phage
How would the results of the hersheychase experiment have been different if protein were the genetic material?
The experiment would simple prove them wrong and prove that DNA is the genetic carrier.
What did Hershey and chase attach radioactive sulfur to?
bunny versus pie
In the Hershey and Chase experiment that helped confirm that DNA not protein was the hereditary material the key finding was that?
The correct answer is: Radioactively labeled phosphorus was present inside the infected bacteria.
What did hershey and chase observe in the offspring bacteria?
Hershey and Chase observed that DNA is the identity of the hereditary material in phage T2. Hershey and Chase used radioactive labels to mark the protein of the bacteriaphage in one experiment and the DNA in another.
What did hershey and chase observe in offspring bacteria?
Hershey and Chase observed that DNA is the identity of the hereditary material in phage T2. Hershey and Chase used radioactive labels to mark the protein of the bacteriaphage in one experiment and the DNA in another.
Worked with radioactive isotopes and to identify genetic material?
Hershey and chase
What scientist conducted tests on extracts made of bacteria to show that the genetic material in bacteria is DNA?
It is not Hershey and Chase !! It is Oswald Avery that conducted these experiments!
What did Hershey and Chase show the genetic material of the t2 bacteriophage was?
DNA is the genetic material. However, Hershey-Chase also stated that some little sulfur containing material also entered the bacterial cell. Looking at these two conclusions, Hershey-Chase could not reach a definite conclusion as to whether DNA or Protein contains the genetic material. The conclusion came from Watson-Crick who stated that the sulfur containing material could have entered the cell due to the fact that DNA replication and subsequently translation of the mRNA leads to the synthesis of sulfur containing protein which were found in the bacterial cell.
What part of the virus did the hershey chase experiment show had entered the bacteria?
Their genetic material
What part of the virus did the hershey-chase experiment show had entered the bacteria?
Their genetic material
What did hershey and chase discover after the p-labeled phages infected the bacteria most of the radioactive phosphorous found in the layer containing?
it was phage
Using radioactive tracers to determine the interactions of bacteriophages and their host bacteria Hershey and Chase demonstrated without question that?
i like pie -yezin
What scientist conducted tests on extracts made of bacteria to show that genetic material in bacteria is DNA?
It is not Hershey and Chase !! It is Oswald Avery that conducted these experiments!
Describe the contributions of hershey and chase to the understanding that DNA is the genetic material?
Hershey and Chase radioactively labelled T2 bacteriophage with P (DNA) and S (protein) to determine if protein or DNA carried the genetic material. They let the bacteriophage infect E.coli. The radioactive material found in the host E.coli contained the radioactive P (found in DNA) as the bacteriophage had multiplied inside the cell, but the radioactive S was not found inside the cell. Therefore DNA is the hereditary molecule resorce - some other guy off the internet
What did hershey and chase find through their experiment with virus-infected bacteria?
The idea of their experiment was to determine what kind of macromolecule was the genetic material, DNA or proteins. Bacteriophages, viruses that infect bacteria, were known to carry all of the information needed to make themselves, but using the genetic machinery of their hosts. Based on this, they were used as a simple system that should be governed by the same principals as the genetic information of the bacteria itself. At the time it was known that nearly all phosphorus in macromolecules is found in nucleic acid, and nearly all sulfur is found in proteins (methionine and cycteine). So if you grow cells in radioactive isotopes of phosphorus, the nucleic acids (e.g. DNA) become radioactive, and if you grow cells in radioactive sulfur, proteins become radioactive. Sorry, there's more. Folks studying infection of bacteria by phage found that most of the virus was a "package" that never entered the cell. So if they mixed phage with bacteria and waited 15 minutes and then put the mix in a blender for a few seconds, the packages that had been attached to the outside of the bacteria get ripped off and can be searated from the bacteria. While the packages are no longer attached to the bacteria, the bacteria are already infected, so the virus genes must already be inside. Now the experiment: Hershey and Chase infected bacteria with phage with racdioactive proteins (sulfur) or in a separate experiment radioactive DNA (phosphorus). The bacteria was mixed with virus for 15 minutes, then whoosh, frappe! They then separated the bacteria from the viruses that had not infected bacteria and empty packages, and asked what kind of radioactive macromoleules were able to get inside the bacteria following the short incubation. In the sulfur experiment , the bacteria were NOT radioactive so proteins appeared to not enter the bacteria during this short time frame. In the phosphorus experiment, the bacteria became radioactive after a short incubation, meaning the DNA of the phage had entered the bacteria in the same time frame as the genetic material. This was consistent with DNA being the genetic material of bacteriophage.
