Monohybrid inheritance and ABO blood groups

What this note covers

1. Define alleles, genotype and phenotype before calculating
2. Construct a Punnett square from gamete probabilities
3. Use test-cross logic while respecting finite evidence
4. Distinguish incomplete dominance from codominance
5. Work ABO crosses using multiple alleles and codominance
6. Check probabilities and distinguish expected from observed

6 sections · 10 key terms & formulas · 6 common mistakes