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

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Biology - Genetics - Advanced - Incomplete dominance and codominance - Three Patterns of Dominance
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Biology - Genetics - Advanced - Incomplete dominance and codominance - Three Patterns of Dominance

vivmagarwal
vivmagarwalJan 29, 2026

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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

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BiologyGenetics - AdvancedAS Level, Class 12, DP Grade 11, Grade 11, Class 12

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