Mutagen

A mutagen is a substance or agent that causes changes (mutations) in the DNA of an organism. These changes can occur spontaneously or be induced by exposure to mutagens like certain chemicals, radiation, or viruses. Mutagens can alter genetic information, potentially leading to health issues such as cancer or genetic disorders. Not all mutations are harmful; some can be harmless or even beneficial. Understanding mutagens is important for public health and safety, especially when assessing environmental risks, developing cancer treatments, or conducting genetic research.