Question

how is incomplete dominance and co-dominance deviate from mendel's laws
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Answer 1

According to Mendel's forst law or law of dominance one of the two factors of a pair express themselves in first flial generation called dominant factor. In incomplete dominance an intermediate phenotype is observed when compared with parental phenotype. It means neither of the parent is dominant over other. In codominance like inheritance of AB blood group offspring shows phenotype that is mixture of the two parental phenotype. Again none of the parental phenotype shows dominance over the other.