In co-dominance, the F1 generation

1. Co-dominance differs from incomplete dominance in what the F1 shows. 2. In co-dominance the F1 generation resembles both parents. 3. Both alleles express themselves fully rather than blending. 4. In incomplete dominance the F1 shows an intermediate phenotype instead. 5. The ABO blood group system is the classic human example of co-dominance. _Source: syllabus Biology Ch4 'Principles of Inheritance and Variation'_