Last week you were wondering what jessica and tom's babies might look like with respect to their eyebrows and earlobes (both tom and jessica have thick eyebrows, controlled by gene e, with thick eyebrows dominant to thin eyebrows, and both of them have free earlobes, controlled by gene f, with free earlobes dominant to attached earlobes). you know that tom's mom has attached earlobes. additionally, tom's mom has thin eyebrows, and so does jessica's dad. no one in jessica's pedigree going back to her great grandparents are known to have had attached earlobes, so you assume that she must be homozygous for this trait. if your inferences based on their known pedigrees are correct, what is the probability that jessica's and tom's first baby will have free earlobes and thin eyebrows?