An example of incomplete dominance in humans is nose size. If you cross a person with a large nose, with someone with a small nose then the child may have a medium nose. This happens because neither trait dominates the other.
Actually, this is incorrect. Sickle Cell Anemia is an example of codominance. Being homozygous Dominant gives you 100% normal cells, Heterozygous is half normal and half sickle cell and being homozygous recessive gives you all sickle cells. In this case being a Homozygote gives rise to homozygous advantage since they will be resistant to malaria and not suffer from decrease blood flow.
A better example of Incomplete dominance is seen with individuals with curly hair. If they have children with someone who has straight hair, the result will be an individual with hair that is intermediate between these two phenotypes.
In Sickle Cell anemia, a person who is heterozygous for the disease has mildly deformed red blood cells. An intermediate phenotype between round and sickle.
hair type. For example, straight hair vs. curly hair = wavy hair
I'm not certain, but I think that intermediate skin color in biracial children would be an example of incomplete dominance.
complete dominance....
Complete dominance
Incomplete dominance
incomplete dominance
When one allele for a particular trait masks or overrides another allele for a trait, it is called dominance. The allele that is masked is called the recessive allele. The allele that is dominant will determine the phenotype.
complete dominance....
Complete dominance
Incomplete dominance
Dominance.
incomplete dominance
incomplete dominance
incomplete dominance
Simple dominance, known as "complete dominance" is when one allele is expressed over another (the recessive gene is not expressed at all). Two other patterns are incomplete dominance and codominance. Incomplete dominance is when a trait is expressed that is somewhere inbetween the two alleles. For example, if BB is black fur and bb is white fur, Bb would be grey fur. Codominance is when both traits are expressed. For example, if RR is red and rr is white, Rr would be white with red spots (or red with white spots).
complete dominance incomplete dominance co-dominance multiple alleles polygenic inheritance
Genes
co-dominance
The 3 main points of how traits are inherited are: 1)Traits are controlled by alleles on chromosomes. 2) An allele's effect is dominant or recessive. 3)When a pair of chromosomes separates during meiosis, the different alleles for a trait move into separate sex cells. (Source: My Life Science Textbook)