Inherited Change (AQA A-Level Biology): Flashcards

Gene with >2 versions in population

Two homologous chromosomes provide 2 gene loci

$I^A$, $I^B$, $I^O$

Antigen A on red blood cells

$I^A I^B$

Both alleles expressed equally

$C^R C^W$

1:2:1 (red:roan:white)

Temperature-sensitive enzyme for pigment

Genotype and environmental factors