A cross is made between two E coli strains: Hfr arg’ bio’ leu’ X F arg’ bio’ leu’. Interrupted mating studies show that arg’ enters the recipient last, so arg’ recombinants are selected on a medium containing bio and leu only. These recombinants are tested for the presence of bio’ and leu’. The following numbers of individuals are found each genotype: a) What is the order of the three markers? b) Construct a map for the three loci indicated above Be sure to show the distances between the three markers. In peas (Pisum sativum), the genetic map of chromosome 7 is as follows, where w, s, and e represent mutant alleles affecting the color and shape of the seeds: Assuming the following cross is made W S E/w s e times w s e/w s e What proportion of the progeny will be of the following phenotypes (assuming there is no interference): a) W S E b)w S E