the possible genotypes for brown-eyed babies and blue-eyed babies can be determined by using the letters B and b to represent the alleles for brown and blue eyes, respectively. A person with brown eyes can have either one or two alleles for brown eyes (BB or Bb), while a person with blue eyes must have two alleles for blue eyes (bb). When two heterozygous brown-eyed parents (Bb) have children, there is a 25% chance that their child will have blue eyes (bb), a 50% chance that their child will be heterozygous brown-eyed (Bb), and a 25% chance that their child will be homozygous brown-eyed (BB). Therefore, the possible genotypes for brown-eyed babies are BB and Bb, and the possible genotype for blue-eyed babies is bb. It is important to note that eye color is a complex trait that is influenced by multiple genes, and the simple Mendelian model does not apply to all variations of eye color