homologous chromosomes
What homologous chromosomes means in Biology A-Level, as defined for AQA.
Definition of homologous chromosomes
Check what you remember
Read the wording for your board, then hide it and explain homologous chromosomes in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
The two chromosomes of a pair that carry the same genes in the same order at the same loci, even though the alleles at those loci may differ.
Topics that use homologous chromosomes
- 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 chromosomes in the exam
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