Any change in the quantity or base sequence of the DNA of an individual is called a mutation.Mutations arise by chance but the rate can be increased by chemicals or ionising radiation.If the mutation arises in a gamete then it will be inherited if the gamete is fertilised and develops into an individual.This may cause a sudden and distinct change in the individual or may cause no visible change at all.
Mutations
Read the text
Read the text and highlight anything you think is important. When you go on, the text is hidden and you answer from memory.
Specification: AQA Biology (7401), AS-level, 3.4.3 Genetic diversity can arise as a result of mutation or during. Topic: Genetic Diversity.
More in Genetic Diversity
- Chromosome Mutations
- Gene Mutations
- Substitution of Bases
- Deletion of Bases
- Polyploidy and Hybrids
- Meiosis
- The Process of Meiosis
- Genetic Recombination by Crossing Over
All 19 lessons in Genetic Diversity · All AQA AS-level Biology topics