human genetics is incredibly complicated. punnett squares are a useful model for determining the genotype of single traits. though eye color is influenced by many factors, we can generalize brown eyes to be a dominant trait (b) and blue eyes (b) to be a recessive trait. if two brown-eyed parents mate, will all of their offspring have brown eyes? why or why not? can any potential grandchildren have blue eyes? fully explain your answer in essay format.