Question

Why does the haploid drone bee not have a father and cannot have sons, but have a grandfather and can have grandsons?

Answer 1

1. This is a concept of Haplodiploidy sex-determination system in which males develop from unfertilized eggs and are haploid, and females develop from fertilized eggs and are diploid.
2. The male honeybee is developed from an unfertilized egg (which comes from the queen bee), so it has a mother and no father (because no sperm was involved in the male honeybees creation).
3. However sperm was used to create its mother, so the male honeybee has a grandfather. And if the male honeybee's sperm is used to create the next queen, then the unfertilized eggs that she lays will become his grandsons.