Induced mutation

Definition

An induced mutation is a genetic alteration caused by external factors, such as chemicals or radiation. These mutations are intentionally created to study gene function or for other research purposes.

5 Must Know Facts For Your Next Test

1. Induced mutations can be caused by physical agents like UV light or chemical agents like nitrous acid.
2. They differ from spontaneous mutations, which occur naturally without external influence.
3. Induced mutations are useful in creating model organisms for studying disease mechanisms.
4. Mutagens used to induce mutations can target specific genes or genomic regions.
5. These mutations can result in various genetic changes, including point mutations, insertions, and deletions.

Review Questions

• What distinguishes an induced mutation from a spontaneous mutation?
• Name two types of agents that can cause induced mutations.
• Why are induced mutations important in genetic research?

Related terms

Mutagen: An agent that causes genetic mutation.

Spontaneous Mutation: A mutation that occurs naturally without external intervention.

Point Mutation: A genetic mutation where a single nucleotide base is changed, inserted, or deleted.