Sulfur-35
radioactive forms of sulfur used in protein labeling. No radioactivity found inside bacterium confirming protein is not genetic material.
Sulfur-35 (abbreviated as 35S) is an isotope of sulfur, meaning it has the same number of protons but a different number of neutrons in its nucleus compared to the most common form of sulfur which is sulfur-32. Specifically, sulfur-35 has 16 protons and 19 neutrons.
Sulfur-35 is a radioactive isotope, which means that it is unstable and undergoes radioactive decay over time. It emits beta particles, which are high-energy electrons, as it decays into other elements. The half-life of sulfur-35 is 87.4 days, which means that if you start with a certain amount of 35S, after 87.4 days half of it will have decayed into other elements.
Sulfur-35 is used in a variety of research applications, particularly in the areas of biochemistry and molecular biology. For example, it can be used to radiolabel proteins or nucleic acids in order to track their movement or interactions in cells or tissues. It can also be used in radioisotope dating techniques to determine the ages of rocks and minerals.
However, because sulfur-35 is radioactive, it must be handled with care and disposed of properly to avoid harm to individuals and the environment. Users of sulfur-35 must be trained in proper radioactive handling techniques and must follow established protocols for safe use and disposal of the isotope.
More Answers:
Unraveling the Structure of DNA: The Impact and Legacy of the Watson-Crick Discoveries on Science and Society.The Hershey-Chase Experiment: Confirming DNA as the Genetic Material in 1952.
Exploring the Applications of Phosphorus-32 (P-32) in Medical, Agricultural, and Biological Research: Benefits and Risks.