In an experiment, researchers transformed wild-type Acinetobacter bacteria with a plasmid that carries a resistance gene (genr) for the antibiotic gentamicin. They spread wild-type Acinetobacter on agar in one Petri dish, and spread the transformed Acinetobacter on agar in a second dish. They added gentamicin to one half of each dish. The results are indicated below. Small shaded circles represent individual bacterial colonies, and large shaded areas represent bacterial growth so dense that individual colonies cannot be distinguished. On which part(s) of the plates would you expect at least some gentamicin-resistant Acinetobacter to occur?: *