What is the difference between a drone bee and a worker bee?

No. Worker bees are all female, and perform all the tasks in the hive except two. The Queen bee lays all the eggs that will produce the new bees. The Drone is male. His only function is to fertilise a Queen. The process of impregnation kills him. All other Drones are disposed of each autumn.
Drones account for approximately 1% of the bees in a honey bee colony.