Answer Happy

You perform a phage co-infection experiment with 2 parental strains of phage: hr and her. The progeny of the co-infection are then used to infect a mixture of two bacterial strains. The details and the progeny plaque phenotypes are shown in the table below: Progeny phage genotype Plaque phenotype on bacteria mixture Number of progeny plaques 74 76 27 23 her small, clear hre large, turbid hr large, clear here small, turbid What is the distance, in map units, between the "h" and "r" genes in the phage genome? (please input a number without any other notation or punctuation)