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Title: Why did hershey and Chase grow viruses in cultures that contained both radioactive phosphorous and sulfur? Post by: rhdhuka on Jul 18, 2013 also what might have happened if they had only one radioactive substance ?
Title: Why did hershey and Chase grow viruses in cultures that contained both radioactive phosphorous and sulfur? Post by: rockinmom on Jul 18, 2013 to see which substances is used to replicate by viruses
they would know for sure if only one substance was used or not Title: Why did hershey and Chase grow viruses in cultures that contained both radioactive phosphorous and sulfur? Post by: extone12 on Jul 18, 2013 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.
If they had just used one substance, they wouldnt be able to be completely sure what was going on with the other molecules they were tracing. |