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
Chemical mutagens are classified as alkylating agents, cross-linking agents, and
polycyclic aromatic hydrocarbons (PAHs). Alkylating agents act by adding ...
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 ...
Mutagenicity and carcinogenicity are clearly correlated. One study showed that
157 of 175 known carcinogens (approximately 90 percent) are also mutagens.
Jun 16, 2014 ... Mutagens and carcinogens. AboutTranscript. Created by Ross Firestone. Share
Tweet Email. Genetic mutations. Practice: Genetic mutations ...
A mutagen is something that affects the process of replication or the structure of
the DNA itself. Therefore, mutagens are agents that cause mutations. There are ...
Mutagens and carcinogens. Article By: Tennant, Raymond W. Cellular and
Genetic Toxicology Branch, Department of Health and Human Resources,