Question: In an experiment you have a U-Tube with two strains of bacteria in two arms. In one arm the bacteria are Gal+ and His-, in other the strain is Gal- and His+. If the two arms are joined by a membrane that doesn’t allow bacterial cells to pass to opposite site what will you observe when you plate each arm bacterial strain on minimal media?
Options
A : None will grow
B : Some colonies seen in right arm
C : Some colonies seen in left arm
D : Some colonies seen in both arms
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