BRAINCAKEVariation
Variation occurs as a result of random mutations and is important for the process of natural selection. There are two types of variation. Inter-specific and intra-specific. Inter-specific variation is variation between different species. Intra-specific variation is variation within the same species.
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Key terms in this lesson
- mutation
- A random change in the base sequence of DNA (a gene mutation) or in the structure or number of chromosomes (a chromosome mutation).
More in Genetics and Variation
- Homeobox Genes
- Body Plans
- Apoptosis
- Regulatory Genes
- Body Mass
- Genetic Variation
- Continuous and Discontinuous Variation
- Genetic Cross
All 36 lessons in Genetics and Variation · All AQA A-level Biology topics