Proteins are labeled with radioactive amino acids so that they can be identified. Scientists use radioactivity to label proteins in order to track them during their experiments, you can follow protein degradation, label proteins that don't have antibodies, label all proteins produced at a certain time, separate proteins produced by intracellular pathogens from host proteins, among many other uses.
Amino acids, peptides and proteins are large molecules made mostly of carbon hydrogen oxygen and nitrgoen.
Generally it has no uses, due to it being radioactive.
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.
Radioisotopes are often used to help understand chemical and biological processes in plants.
Nitrogen-Building block of proteins
phase. I think
Thymidine is a nucleoside that consists of one thymine molecule linked to a d-doxyribose sugar molecule. Radioactive thymidine is usually used in DNA labeling.
DNA is labeled a radioactive phosphorus because when Alfred looked at the examples 32p always pelleted with bacteria but the new Phage made by these infected bacteria contained Radioactive 32p which is why its labeled Radioactive phosphorus.
The mitochondria contains a circular molecule of DNA that still codes for several proteins used by the mitochondria.
Messenger RNAMessenger RNA
DNA and proteins