What did Hershey and Chase discover in their experiment?
Hershey and Chase concluded that protein was not genetic material, and that DNA was genetic material. Unlike Avery’s experiments on bacterial transformations, the Hershey-Chase experiments were more widely and immediately accepted among scientists.
Why is the Hershey-Chase experiment important?
Hershey-Chase experiment: An extraordinarily important experiment in 1952 that helped to 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. …
What are the contributions of Hershey?
Alfred Hershey was a phage geneticist who, with his research assistant, Martha Chase, did one of the most famous experiments in molecular biology. The “blender” experiment proved that DNA carried genetic information.
What evidence from the Hershey-Chase experiment demonstrated that DNA not protein is the genetic material?
The Hershey-Chase experiment, which demonstrated that the genetic material of phage is DNA, not protein. The experiment uses two sets of T2 bacteriophages. In one set, the protein coat is labeled with radioactive sulfur (35S), not found in DNA.
What was the overall conclusion of the Hershey Chase experiment?
Hershey and Chase concluded that DNA, not protein, was the genetic material. They determined that a protective protein coat was formed around the bacteriophage, but that the internal DNA is what conferred its ability to produce progeny inside a bacterium.
How did the results of Hershey Chase experiment strengthen Avery’s conclusion?
How did the results of the Hershey-Chase experiment strengthen Avery’s conclusions? Hershey and Chase studied bacteriophages which are viruses that attack bacteria. In their experiment Hershey and Chase labeled the bacteriophages with radioactive isotopes to see where the virus attacks.
Do one both or neither of the daughter cells have radioactive DNA?
Since replication is done from one or more starting points in both directions, we can conclude that DNA molecules in both of the daughter cells will consist out of one strand from the DNA of the parental cell, which contains radioactive nitrogen, and the other strand that is made out of non-radioactive nucleotides.