When the offspring has a heterozygous phenotype that is intermediate between the two homozygous phenotypes that were has occurred ?

When the heterozygous phenotype is intermediate between the two homozygous phenotypes, the pattern of inheritance is called incomplete dominance. Multiple Alleles. Although an individual can haveat most two different alleles, a species may have multiple alleles of many of its genes.

Ihaven't done that yet, so no idea,but this is not the right place to ask