Question

What happens if you have two different dominant alleles?

Answer 1

Allele:

1. In a particular genomic region, an allele is one of two or more variations of a DNA sequence.
2. For each given genomic site where such variation exists, an individual inherits two alleles, one from each parent.
3. If the two alleles are identical, the person is homozygous for that allele. If the alleles vary, the person is heterozygous.
4. Even if a person just has one copy of a dominant allele, it has an effect.
5. Recessive alleles affect only individuals who have two copies of the allele.
6. When both alleles are dominant, codominance arises.
7. The resulting characteristic is the outcome of the equal expression of both alleles.
8. One example is blood group AB, which derives from the codominance of the A and B dominant alleles.