Biology A-Level
homologous pairs
What homologous pairs means in Biology A-Level, as defined for AQA.
Definition of homologous pairs
Check what you remember
Read the wording for your board, then hide it and explain homologous pairs in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Pairs carrying the same genes at the same loci, one from each parent, though alleles may differ and sex chromosomes may differ in size.
Topics that use homologous pairs
- DNA, genes and chromosomes (AQA A-Level)
Related terms
- alleles
- base sequence
- chromatin
- circular organelle DNA
- crossing over
- degenerate code
- endosymbiotic theory
- functional RNA
Using homologous pairs in the exam
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