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GCSE Combined Science · key term
Differences in the characteristics of individuals within a population of the same species.
Used by AQA and Edexcel
Specification 4.6.2.1 · Paper 2
Revise: VariationPeople differ in height, blood group and body mass; plants of the same species can differ in how tall they grow. These differences in characteristics are called variation. A population is a group of individuals of the same species living in an area.
Paper 1, Paper 2
Differences between individuals of the same species.
Revise: Polygenic features and phenotypic variationDifferences between them are called variation. Humans, for example, differ in height, eye colour and blood group.
When explaining variation, identify whether the cause is genetic, environmental or both, and link it to the characteristic in the question.
When explaining genetic variation, name both mutation and sexual reproduction. Mutation changes genetic material; sexual reproduction produces new combinations of alleles.
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