what is a genotype that is a combination of a dominant and recessive gene
For example, if one parent is homozygous dominant (WW) and the other is homozygous recessive (ww), then all their offspring will be heterozygous (Ww) and possess a widowâs peak. If both parents are heterozygous (Ww), there is a 75% chance that any one of their offspring will have a widowâs peak (see figure).ince each parent provides one allele, the possible combinations are: AA, Aa, and aa. Offspring whose genotype is either AA or Aa will have the dominant trait expressed phenotypically, while aa individuals express the recessive trait.