<P> A laying worker bee exclusively produces totally unfertilized eggs, which develop into drones . As an exception to this rule, laying worker bees in some subspecies of honey bees may also produce diploid (and therefore female) fertile offspring in a process called thelytoky, in which the second set of chromosomes comes not from sperm, but from one of the three polar bodies during anaphase II of meiosis . </P> <P> In honey bees, the genetics of offspring can best be controlled by artificially inseminating a queen with drones collected from a single hive, where the drones' mother is known . In the natural mating process, a queen mates with multiple drones, which may not come from the same hive . Therefore, batches of female offspring have fathers of a completely different genetic origin . </P> <P> A drone is characterized by eyes that are twice the size of those of worker bees and queens, and a body size greater than that of worker bees, though usually smaller than the queen bee . His abdomen is stouter than the abdomen of workers or queen . Although heavy bodied, the drone must be able to fly fast enough to accompany the queen in flight . </P> <P> An Apis cerana colony has about 200 drones during high summer peak time . </P>

How to tell a drone bee from a worker bee
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