In a transformation experiment, bacteria containing pen(R), his(+) and lac(+) are used to transform an pen(S), his(-) and lac(-) recipient. The results are shown above. I have expressed the number of colonies as a percent, so we don't need to do calculations. What is a possible map for these three genes, amp, bio and gal? his lac - lac pen his -- Open lac pen his ---- pen. lac -- ----- -his- - pen --- his lac lac --- his pen Complete Medium: 100% Minimal Medium with lactose: 2% Minimal Medium with penicillin and glucose: 6% Minimal Medium with penicillin, lactose and histidine: 15%