Which mendelian idea is depicted by a cross in which F1 generation resembles both the parents
A
Codominance
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B
Incomplete dominance
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C
Law of dominance
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D
Inheritance of one gene.
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Solution
The correct option is A Codominance
Codominance is a form of dominance wherein the alleles of a gene pair in a heterozygote are fully expressed. This results in offspring with a phenotype that is neither dominant nor recessive. A typical example showing codominance is the ABO blood group system. For instance, a person having A allele and B allele will have a blood type AB because both the A and B alleles are codominant with each other.
Codominance is different from incomplete dominance in a way that the former has both alleles manifesting the phenotypes whereas the latter produces an intermediate phenotype.