Tongue rolling is dominant to the inability to roll the tongue, and free earlobes are dominant to attached earlobes. The genes that control these two traits are located on nonhomologous chromosomes. Suppose that a woman with free earlobes and can roll her tongue marries a man with attached earlobes who can also roll his tongue. The first child can not roll his tongue and has attached earlobes. What are the genotypes of the parents and the first child
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