Preheat the oven to 400 degrees and line a baking sheet with parchment paper.
Unroll the pizza dough on a lightly floured surface and divide it into 8 equal pieces.
Roll each piece into a long rope about 6 inches in length, then press the ends slightly wider to form a bone shape.
Place the shaped dough on the prepared baking sheet and brush each piece lightly with olive oil.
Sprinkle the garlic powder evenly over the breadsticks, followed by the grated Parmesan cheese.
Bake for 12 to 15 minutes until the breadsticks are golden on the edges.
Warm the marinara sauce in a small saucepan or microwave and serve it alongside the breadsticks for dipping.