What is the difference between polygenic inheritance and incomplete dominance?

Answer 1

Codominance and incomplete dominance are the same in that they both apply to a heterozygote (an organism with two different alleles for one trait).

The difference is in how the two different alleles are expressed in the phenotype, or appearance, of the organism.

• In codominance, you can see the effect of both alleles distinctly. A person who has one allele for type A blood and one allele for type B blood will have type AB blood. You can see the effects of both the A and the B allele, but they remain distinct from each other.
• In incomplete dominance, the effect of the two alleles is more blended, as if neither allele can completely overpower the other. In some flowers, plants with two alleles for white color are white, and plants with two alleles for red color are red, but a heterozygote with one allele for red and one for white is pink. (Not red and white as you'd see with codominance.)

Answer 2

Dominance is an organic phenomenon in which one of a pair of alleles present in a genotype is expressed in the phenotype and the other allele of the pair is not. Where as Co-dominance is a condition in which both alleles of a gene pair in a heterozygote are fully expressed, with neither one being dominant or recessive to the other.

Answer 3

Incomplete dominance in genetics, such as that reflected in skin color, creates an "intermediate phenotype", or a mixture of the genes' expression. In contrast, codominance in genetics, like in AB blood type, simply expresses both genes simultaneously.

Answer 4

what is Mendel's Rule of Dominance? How does incomplate dominance differ from Mendel's idea of dominance?

Answer 5

Polygenic Inheritance is when many genes influence for one trait. Incomplete Dominance is when Hybrids have a blend of traits.

Answer 6

because they go boom