Biology A-Level
small populations
What small populations means in Biology A-Level, as defined for AQA.
Definition of small populations
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Reference: AQA
Groups in which an unrepresentative sample of alleles can easily be passed on, so the effect of chance change in allele frequency is larger.
Topics that use small populations
- Evolution may lead to speciation (A-level only) (AQA A-Level)
Related terms
- allele frequency change
- allopatric speciation
- causes of change
- common ancestry
- competition for resources
- continuous variation
- crossing over
- directional selection
Using small populations in the exam
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