Incomplete dominance occurs when a gene doesn't have a complete and total dominance over another, therefore, you will still be able to see traces of the less dominant gene in the offspring.
Pink flowers occur because the allele for red flowers is not completely dominant over the allele for white flowers.
In biology, incomplete dominance refers to the specific characteristic of an allele not being completely expressed over its paired allele. As a result, a new hybrid allele is formed.
In this case, the red flower allele is not completely expressed over the white flower allele, resulting in pink flowers.
