Biology

Mendel's Rule of Dominance states that one allele will dominate over another in a heterozygous individual.

However, codominance is an exception to this rule.

In codominance, neither allele is completely dominant over the other; instead, both alleles are expressed equally.

A classic example of codominance is the ABO blood group system, where both the A allele and the B allele are expressed when present in a heterozygous individual (genotype AB).

Option B (Complete dominance) i...