The queen is the only sexually developed female in the hive.
The queen bee lives for about two to three years and is the only bee that lays eggs. She is the busiest in the summer months, when the hive needs to be at its maximum strength, and lays up to 2500 eggs per day.
A queen can lay her weight in eggs in one day and 200,000 eggs in a year.
The queen stores the sperm from these matings in her spermatheca, thus, she has a lifetime supply and never mates again.
A queen bee can control the flow of sperm to fertilize an egg when she is about to lay an egg. Honey bees have an unusual genetic sex determination system known as haplodiploidy. Worker bees are produced from fertilized eggs and have a full (double) set of chromosomes. The males, or drones, develop from unfertilized eggs and are thus haploid with only a single set of chromosomes.
When a powerful, young queen bee senses a brand new potential queen has been born, she is going to usually track it down and sting it to death. when 2 years around, associate aging queen can become weak and can be displaced by a newly born queen.