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Why did Hersheys and chase grow viruses in cultures that contained both radioactive phosphorus and radioactive sulfur?
Phosphorous 32 was used to label the Nucleic Acid. Sulfur 35 was used to label the protein. The progeny of the E. coli cells Hershey and Chase grew the virus in had Phosphorous 32 in them which concluded that the DNA went inside and was the genetic material. The phage coating left on the outside tested positive for Sulfur 35 which meant protein was left on the outside.
Why did Hershey and Chase grow viruses in cultures that contained both radioactive Sulfur. What might have happened if they had used only one radioactive substance.?
Hershey and Chase used radioactive Sulfur to label viral proteins, as proteins contain sulfur. By growing the viruses in a culture containing both radioactive Sulfur and Phosphorus, they could differentiate between viral proteins (labeled with Sulfur) and viral DNA (labeled with Phosphorus). If they had only used one radioactive substance, they would not have been able to determine the specific molecule (protein or DNA) that the virus injected into the host cell.
Who is experiment demonstrated that DNA is the molecule of heredity?
The Avery and Hershey-Chase Experiments • Alfred Hershey and Martha Chase provided the final experimental evidence that pointed to DNA as the hereditary material the team studied viruses that infect bacteria -the structure of these viruses is very simple: a core of DNA surrounded by a coat of protein -the viruses attach themselves to the surface of bacteria cells and inject their genes into the interior • the infected bacterial cell is then forced to make hundreds of copies of new viruses, which then burst out of the cell to infect new cells. • Hershey and Chase used radioactive isotopes to "label" or tag the DNA and the protein of the viruses -some viruses were grown so that their DNA contained radioactive phosporous (32P) -other viruses were grown so that their protein coats contained radioactive sulfur (35S) After the labeled viruses were allowed to infect bacteria, only the viruses with 32 P had labeled tracer in their interior • The conclusion was that the genes that viruses use to specify new viruses are made of DNA and not protein
How many milligrams of sulfur would be contained in 1 gram of ointment?
It depends on the %mass of Sulfur in the ointment.
Radioactive sulfur was used to label the ... in viruses?
phase. I think
How many electrons are contained in sulphur?
Sulfur is a non metal element. There are 16 electrons in a single atom.
What are the three ingredents in gunpowder?
Gunpowder originally contained sulfur, charcoal, and saltpeter.kno3
What did hershey and chase discover after the p-labeled phages infected the bacteria most of the radioactive phosphorous found in the layer containing?
Hershey and Chase discovered that after the P-labeled phages infected the bacteria, most of the radioactive phosphorus was found in the viral DNA, while little to no radioactive sulfur (used to label protein) was found. This confirmed that genetic material, not protein, is responsible for heredity in viruses.
Which element is likely to be contained in a substance with a brilliant yellow color?
A common substance that will have a yellow color is the element sulfur (S). Another substance of similar brilliant color is yellow cake uranium (Ur).
What elements are contained in water?
There are many elements that are contained in seawater. Some examples include magnesium, sulfur, selenium, silicon, fluorine, sodium, and chlorine.
Witch element is likely to be contained in a substance with a yellow color?
Chromium is a likeley element to be contained in a substance with a brilliant yellow color.
In 1952 hershey and chase used a bacteriophageto determine that genetic material is made of what?
These two isotopes are: phosphorus-32 and sulfur-35.
