What term describes a change in DNA?

The term that describes a change in DNA is mutation. Mutations refer to alterations in the DNA sequence that can occur in various forms, including substitutions, insertions, deletions, or rearrangements of the genetic material. These changes can be spontaneous or induced by environmental factors and can have various effects on the organism, ranging from benign to significant consequences on health and development.

In the context of genetics, mutations are significant because they contribute to genetic diversity and can play a role in the evolution of species, as well as in the development of certain diseases, including cancer. Understanding mutations is crucial in fields like genetics, molecular biology, and medicine, as they can help explain how certain traits or conditions are inherited or arise.