A-Level CAIE Biology A2 16.2.4—Genes, proteins and phenotype Question Bank

• Relationship between genes, proteins, and phenotype:

- TYR gene, tyrosinase, albinism

- HBB gene, haemoglobin, sickle cell anaemia

- F8 gene, factor VIII, haemophilia

- HTT gene, huntingtin, Huntington's disease