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Q.What is the difference between drone, worker and queen bees on genetic basis?

Uttar Pradesh UpmspUP Board (UPMSP) Intermediate 2018Subjective· 2mImportance★★★★★
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Drones are haploid (from unfertilised eggs); queen and workers are diploid (from fertilised eggs) — a haplodiploid system; queen vs worker is decided by feeding, not genes.

Honey bees show haplodiploid sex determination:

  • Drones (males) develop from unfertilised eggs by parthenogenesis and are therefore haploid (n). They have no father and produce sperm by mitosis (not meiosis).
  • Queen and workers (females) develop from fertilised eggs and are diploid (2n). …

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