What is true with respect to mutagens?

Mutagens are agents that cause changes or mutations in the DNA of organisms, potentially leading to genetic alterations. They can be physical, such as radiation, or chemical, including certain substances like benzene or formaldehyde. Exposure to mutagens can increase the risk of cancer and other genetic disorders by disrupting normal cellular processes. Importantly, not all mutagens lead to harmful effects, as some mutations can be neutral or even beneficial in certain contexts.