Biology A-Level
disruptive selection
What disruptive selection means in Biology A-Level, as defined for AQA.
Definition of disruptive selection
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Reference: AQA
Favours both extremes and selects against the intermediates, so a single curve becomes two peaks.
Topics that use disruptive selection
- 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 disruptive selection in the exam
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