What is the difference in male and female bees fertility?

Drones(males) are produced from unfertilized eggs and therefore represent only the DNA of the queen that laid the eggs, i.e. have only a mother. Workers (females without reproductive capacity) and queens (females with reproductive capacity) result from fertilized eggs and therefore have both a mother and a father. A modified form of Parthenogenesis controls sex differentiation. The sex Allele is Polymorphic and so long as two different variants are present, a female bee results. If both sex alleles are identical, diploid drones are produced. Honeybees detect and destroy diploid drones after the eggs hatch.