Codominance itself means...it represents the characters inherited by both parents...
whereas... in dominance law ..;only the dominant character is expressed in the offsprings...& in incomplete dominance an intermediated character is observed in the offsprings other than those of parents.

Co-dominance

Co-dominance is the Mendelian idea depicted by a cross in which the F1 generation resembles both parents. In co-dominance, both alleles of a gene are expressed equally and simultaneously in the heterozygous condition. This means that both alleles are fully expressed, and neither allele is dominant or recessive over the other.

Explanation:

- In Mendelian genetics, traits are determined by the inheritance of specific alleles, or alternative forms of a gene. Alleles can be dominant or recessive, and their interaction determines the phenotypic expression of a trait.
- In the case of co-dominance, both alleles are fully expressed in the heterozygous condition, meaning that both phenotypes are observed simultaneously.
- This is in contrast to the law of dominance, where one allele is dominant and masks the expression of the recessive allele.
- Co-dominance is observed when both alleles contribute equally to the phenotype, leading to a unique expression that combines the traits of both parents.
- A classic example of co-dominance is the ABO blood group system in humans. The ABO system is controlled by multiple alleles, including the A and B alleles.
- Individuals with the genotype AA or AO have the A blood type, while individuals with the genotype BB or BO have the B blood type.
- In the case of co-dominance, individuals with the genotype AB have the AB blood type, which exhibits both the A and B antigens on the surface of red blood cells.
- This is different from incomplete dominance, where a blending of traits is observed in the heterozygous condition. In incomplete dominance, the phenotype of the heterozygote is intermediate between the phenotypes of the homozygous individuals.
- Therefore, the correct answer is option C, co-dominance, as it explains the scenario where the F1 generation resembles both parents in a cross.