Barbara and Joe just discovered that their son is a hemophilic. Neither of them has hemophilia and Joe claims that no such condition was ever expressed in his family. Barbara's father was a hemophiliac and problems resulting from this condition caused his death. Joe has been told that hemophilia can only be passed on to an offspring by parents and not by grandparents; he believes that Barbara was unfaithful and that the child is not his. If you were a genetic counselor, what would you tell Joe? Give Joe a good explanation and alsoPunnett Square showing the genotypes of Barbara and Joe and the possible genotypes of their children. What are the chances that a son born of this couple would have hemophilia? What are the chances that a daughter born of this couple would have hemophilia?