A relationship among alleles where both alleles contribute to the phenotype of the heterozygote.
The pictures above show that if the two parent flowers (red and white) cross pollinate then the offspring flower would be a combination of their two colors (pink) because of Incomplete Dominance.
When cross pollinated the same number of alleles from both plants are merged together.
If neither allele is dominant they are both expressed.
It is similar to co dominance because an additional phenotype is produced but both alleles are expressed completely.
Ex. A child with curly hair is born from a parent with wavy hair and a parent with strait hair.
Ex. A rabbit with a brown fur coat that happened as a result of both their parents red allele and white allele coats not dominating.