In genetics, a mutagen is a physical or chemical agent that changes the genetic
material, usually DNA, of an organism and thus increases the frequency of ...
Jun 14, 1999 ... Introduction: Definitions and mutation rates; Types of Mutations; Origins of
Spontaneous Mutation; Mutagens; DNA Repair Systems ...
DNA changes caused by mutagens may harm cells and cause certain diseases,
such as cancer. Examples of mutagens include radioactive substances, x-rays, ...
Citation: Ralston, A. (2008) Environmental mutagens, cell signalling and DNA
repair. Nature Education 1(1):114. Email. Do genes live in a bubble? Find out
Many mutagenic test systems other than S. typhimurium have been used to test
chemicals (see review by Hollstein and McCann, 1979). In the discussion that ...
Mutagens and carcinogens. Article By: Tennant, Raymond W. Cellular and
Genetic Toxicology Branch, Department of Health and Human Resources,
Mutation. ▫ Spontaneous Mutation & Induced Mutation. ▫ Mutagen. ▫ Chemical
Mutagens. ▫ Radiation. ▫ Biological Mutagens. ▫ Conclusion. Introduction ...
Jun 11, 2016 ... A mutagen is a substance or agent that causes an increase in the rate of change
in genes (subsections of the DNA of the body's cells).
Any agent that promotes a mutation or causes an increase in the rate of
mutational events, for example, radioactive substances, x-rays, or certain