Mutagen - Wikipedia
In genetics, a mutagen is a physical or chemical agent that permanently changes genetic material, usually DNA, in an organism and thus increases the frequency of mutations above the natural …
Mutagen - National Human Genome Research Institute
1 day ago · A mutagen is a chemical or physical phenomenon, such as ionizing radiation, that promotes errors in DNA replication.
Mutagens- Definition, Types (Physical, Chemical, Biological)
Aug 3, 2023 · A mutagen is a physical or chemical agent that can cause mutations in DNA and raises their frequency above natural background levels.
What Is a Mutagen? Definition, Types, and Effects
Aug 16, 2025 · A mutagen is an agent that causes mutations in an organism’s genetic material, typically DNA or RNA. These alterations can affect the sequence or structure of DNA, increasing the …
Mutagen | DNA damage, genetic mutations, carcinogens | Britannica
Mutagen, any agent capable of altering the genetic constitution of a cell by changing the structure of the hereditary material, deoxyribonucleic acid (DNA). Many forms of electromagnetic radiation (e.g., …
Mutagen - an overview | ScienceDirect Topics
A mutagen is a physical agent or chemical reagent that causes mutations. For example, nitrous acid reacts with some DNA bases, changing their chemistry and hydrogen bonding properties, and is a …
Definition of mutagen - NCI Dictionary of Cancer Terms
mutagen (MYOO-tuh-jen) Anything that causes a mutation (a change in the DNA of a cell). DNA changes caused by mutagens may harm cells and cause certain diseases, such as cancer. …