D4.1.10 (HL)—Allele frequencies
Allele frequencies describe how common each allele is in a population gene pool in evolving populations in evolving populations in evolving populations.
- Syllabus
- First assessment 2025
- Objective
- D4.1.10
- Level
- HL
Concept essentials
- Allele frequency is a proportion within the population gene pool.
- For two alleles, p plus q equals one.
- A change in allele frequency is evidence of evolutionary change.
ConceptIB Biology HL