What is law of dominance?

Explanation

(a) Co-dominance : The phenomenon where heterozygotes have features of both the homozygotes, hat is, an allele is neither dominant nor recessive to the other. (1) Different types of red blood cells that determine ABO blood grouping in humans (2) Seed coat pattern size in lentil plants. A cross between pure breeding spotted lentils with pure breeding dotted lentils produce hetrozygotes. These `F_(1)` hybrid show the phenotypic features of both parents which means that neither the spotted nor the dotted, allel is dominant or recessive to the other. Because both traits show up equally in the heterozygote.s phenotype, the alleles in the heterozygote.s phenotype, the alleles are termed co-dominant. `F_(1)` plants are self pollinated produce `F_(2)` progeny in the ratio of (1 spotted : 2 spotted and dotted : 1 dotted).