what is the difference between codominance and incomplete dominance?

Answer 1

Codominant Alleles are two alleles that are both fully expressed (phenotype). An example is in human ABO blood types, the heterozygote AB type manufactures antibodies to both A and B types

Incomplete Dominant Alleles are two alleles that when mixed produce a trait that is a blend of both. If a red flowered plant is crossed with a white flowered one, the progeny will all be pink.
When pink is crossed with pink, the progeny are 1 red, 2 pink, and 1 white.

Incomplete dominance simply means that half as many molecules (in the heterozygote) are not as effective as the number produced by the homozygote. Codominance means that both proteins are equally effective in the cell.

Answer 2

Incomplete dominance is a heterozygous condition in which both alleles at a gene locus are partially expressed, often producing an intermediate phenotype.

Codominance 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.

An example of codominance is the ABO blood typing system used to determine the type of human blood.

Answer 3

codominance is were two traits are equally expressed in the organism. Like in rune cows who are a cross between white and brown cows is mixture of the two and it nakes it look redish color while incomplete dominance only one allele is expressed

Answer 4

The other answers have this question pretty well covered, but here is a simple example:

Suppose you have two allels for skin color: B = Black and W = White.

If they are co-dominant:

BB= Black
BW = Grey
WW = White

If Black is dominant:

BB = Black
BW = Black
WW = White.