Describe the haplo-diploid sex determination system.

(N/A) The sex determination in honey bees is based on the number of sets of chromosomes an individual receives.
An offspring formed from the union of a sperm and an egg develops as a female (queen or worker),and an unfertilized egg develops as a male (drone) by means of parthenogenesis. This means that the males have half the number of chromosomes compared to a female.
The females are diploid,having $32$ chromosomes,and males are haploid,i.e.,having $16$ chromosomes. This is called the haplo-diploid sex determination system. It has special characteristic features,such as: males produce sperms by mitosis,they do not have a father and thus cannot have sons,but they have a grandfather and can have grandsons.