Tools designed to predict offspring eye color, incorporating grandparental phenotypes, typically use simplified models of inheritance based on dominant and recessive genes. These tools often consider the eye colors of the parents and grandparents to offer a probabilistic estimate of the child’s eye color, though predictions are not definitive due to the complex polygenic nature of eye color inheritance.
While not scientifically precise, these predictive tools can be educational and engaging, providing a basic understanding of how traits are passed down through generations. They offer a glimpse into the fascinating world of genetics, encouraging further exploration of heredity and phenotype expression. Historically, understanding inheritance patterns relied on observation and deduction. Modern genetic tools provide a more nuanced understanding, though simplified models still play a role in introducing basic concepts to a wider audience.