Question

Explain the statement of Law of dominance is not universal.

Answer 1

1. According to the law of dominance, when two homozygous individuals with one or more sets of contrasting characters are crossed, the alleles (characters) that appear in F₁ are dominant and those which do not appear in F₁ are recessive.
2. In many cases, the dominance is not complete or absent. This can be explained by two deviations of Mendel’s law of dominance: Incomplete dominance and codominance. Thus, the law of dominance is significant and true, but it is not universally applicable.