With the help of graphical representation explain sex determination in honey-bees.
Q.14 With the help of graphical representation explain sex determination in honey-bees.
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Answer: Honey bees show haplo-diploid sex determination: sex depends on the number of chromosome sets, not on sex chromosomes.
| Queen (female) 2n = 32 | × | Drone (male) n = 16 | |
|---|---|---|---|
| Gametes | Eggs n = 16 (by meiosis) | Sperms n = 16 (by mitosis) | |
| Fertilised egg | Zygote 2n = 32 → female: queen (if fed royal jelly) or sterile worker | ||
| Unfertilised egg | Develops by parthenogenesis, n = 16 → male (drone) | ||
Thus females are diploid and develop from fertilised eggs, while males are haploid and develop from unfertilised eggs. Drones produce sperms by mitosis, have no father and cannot have sons.
Doubtly AI
· 28 Oct 2026
AI-verified · Oct 2026
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