Genes for color blindness and hemophilia are linked on theX-chromosome in humans with a recombination frequency of 30 %. Awoman whose father was a color blind hemophiliac and mother wasnormal with no history of color blindness and hemophilia wants tohave children. The prospective father is normal with no history of either color blindness or hemophilia in his family. What is the probability that she will have a normal child?