MUTATION
- Mutation is any change in DNA sequence.
- It is a heritable change.
- Mutations can affect genotype as well as phenotype.
- It also leads to variations.
- Types of mutations: Point mutations, frame-shift mutations.
- Mutations that occur due to change in a single base pair of DNA is called as point mutations. For example: sickle cell anemia
- When there is deletion or insertion of base pairs of DNA, it causes frame-shift mutations.
- Mutagens are the chemical and physical factors that induce mutations. UV rays can also cause mutations.
