Genetic inheritance tools, often available online, can provide predictions of offspring eye color based on grandparental phenotypes. These tools utilize simplified models of eye color inheritance, typically focusing on the two primary genes, bey2 and gey, and their allelic variants (brown, blue, green). For example, if all four grandparents have brown eyes, the tool might predict a high probability of brown eyes for the grandchild, though variations can occur.
Understanding the hereditary patterns of eye color offers valuable insights into basic genetics principles. While not perfectly predictive due to the complex interplay of multiple genes and environmental factors, these tools can illustrate the probabilistic nature of inheritance. Historically, eye color prediction relied on Punnett squares and pedigree charts; however, online calculators offer a more accessible and visually engaging approach to exploring this fascinating aspect of human genetics.
