Biology - Genetics - Advanced - Incomplete dominance and codominance - Three Patterns of Dominance
3 steps comparing dominance types. Step 1: 'COMPLETE DOMINANCE - Heterozygote looks like homozygous dominant. Red (RR) × White (rr) → All Red (Rr). The dominant allele completely masks the recessive. Phenotype ratio from Rr × Rr = 3:1.' Step 2: 'INCOMPLETE DOMINANCE - Heterozygote shows a BLEND. Red