2. immune globulin. gamma rays (Î³-rays) electromagnetic emissions from radioactive substances; they are similar to and have the same general properties as x-rays but are produced through the disintegration of certain radioactive elements.. immune globulin. gamma rays (Î³-rays) electromagnetic emissions from radioactive substances; they are similar to and have the same general properties as x-rays but are produced through the disintegration of certain radioactive elements.
3. The chromosomes in the cell nucleus would contain the most radioactivity because thymine is part of the DNA molecule and chromo-somes are composed of DNA. Inclusion/Special Needs Show students a picture of a bacterial cell and an animal cell. Talk about the location of DNA in each cell and where DNA replication occurs.
Atomic Decay. When an atom of a radioisotope decays, it gives off some of its excess energy as radiation in the form of gamma rays or fast-moving sub-atomic particles. If it decays with emission of an alpha or beta particle, it becomes a new element. One can describe the emissions as gamma, beta and alpha radiation.