_________ have chloroplast dimorphism as a characteristic feature.

The correct answer is: C4 plants

C4 plants have chloroplast dimorphism as a characteristic feature.
C4 plants are defined as plants that use the C4 pathway or hatch-slack pathway during the dark reaction. The leaves possess kranz anatomy, and the chloroplasts of these plants are dimorphic. About 5% of plants on earth are C4 plants.