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NEET2026ZoologyPrinciples of Inheritance and VariationActual

Which of the following statements are true with reference to the sex-determination in honeybees ? A. An offspring formed from the union of a sperm and an egg, develops as a female (queen or worker). B. An unfertilized egg develops as a male by parthenogenesis. C. A male has half the number of chromosomes than that of a female. D. Males produce sperms by meiosis. E. Honeybees have a haplodiploid sex-determination syst

Options

  1. AA, B, C and E only
  2. BB, C, D and E only
  3. CA, B, C and D only
  4. DA, B, D and E only

Correct answer

A. A, B, C and E only

Step-by-step solution

In honeybees, sex determination is based on the haplodiploid system. Statement A is correct. Fertilized eggs (diploid) develop into females, which can be either queens or workers depending on their nutrition. Statement B is correct. Unfertilized eggs develop into males (drones) through parthenogenesis. Statement C is correct. Males are haploid ( n=16 ) and females are diploid ( 2n=32 ), so males have half the number of chromosomes compared to females. Statement D is incorrect. Since males are already haploid, they

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