Two plants in a cross were each heterozygous for two gene pairs (ab/ab) whose loci are linked and 15 map units (mu) apart. (recall that 1 mu is equal to 1% recombination between two genes.) assuming that crossing over occurs during the formation of both male and female gametes and that the a and b alleles are dominant, determine the phenotypic ratio of their offspring. part a if the two genes are 15 mu apart and the plant is (ab/ab), what proportion of gametes from a single plant will be ab ? enter your answer as a decimal to three places (for example: 0.120).