mutations
n. countablen. changes in the genetic code of a living thing. These changes can happen naturally and sometimes lead to new traits or features in a plant or animal.
n. permanent alterations in the DNA sequence that makes up a gene. Such changes can result from errors during DNA replication or exposure to environmental factors.
Some mutations help bacteria survive in harsh conditions.
Scientists are studying how specific genetic mutations contribute to the development of rare diseases in children.
While many mutations are neutral or even harmful, they provide the essential genetic variation that allows populations to adapt to changing environments over evolutionary timescales.
Typically used in the plural when discussing general biological processes or multiple genetic changes.