Genes come in pairs, and each gene in a pair may differ slightly. One gene may be dominant, and override the other gene, which is recessive. A recessive gene only has an effect if both genes in a pair are recessive. An example is eye color. Although this is not as simple as depicted here, blue is the recessive gene, and brown is the dominant gene. Find out what color your baby's eyes will be.
Genes affect everything about your child's physical characteristics, including eye color. Parents, determine your baby's possible eye color by learning about dominant, recessive, and mixed genes that you are passing along.