What does it mean to be dominant heterozygous?
Here’s an example to illustrate the meaning A-represents the dominant allele for curly hair a-represents the allele for straight hair A person is homozygous dominant if he has the genotype AA A person is heterozygous dominant if he has the genotype Aa Both of them will have the same phenotype(curly hair because of the presence of the dominant allele A).The only difference is the genotype.