Brown eyes are dominant over blue eyes. if two brown eyed parents have a child with blue eyes, what does it mean about the parent’s genotype?

Vaccines are weakened forms of disease causing microorganisms, which are given to patients to prevent disease. after the vaccine is administered, the immune system responds by creating a(n) to recognize the a.) antibody, antibiotic b.) antigen, antibody c.)antibiotic, antibody d.)antibody, antigen