NEET 2026 (cancelled) · Question 93 · Class 12

Principles of Inheritance and Variation

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 system. Choose the correct answer from the options given below :

  1. (A)A, B, C and E only
  2. (B)A, B, C and D only
  3. (C)B, C, D and E only
  4. (D)A, B, D and E only

The NCERT line that answers it

Verbatim line

An offspring formed from the union of a sperm and an egg develops as a female (queen or worker), and an unfertilised egg develops as a male (drone) by means of parthenogenesis.

Chapter
Principles of Inheritance and Variation
Section
4.6.2 Sex Determination in Honey Bee
Page
20
Words matched
88 of 88

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

0, emb=1.0, combined=1.0). Verified: high — The span explicitly states that fertilized eggs develop as females, unfertilized eggs develop as males via parthenogenesis, males have half the chromosomes, and the system is haplodiploid, which directly supports statements A, B, C, and E, and also implies that males produce sperms by mitosis (not meiosis), thus distinguishing the correct option A from the others.

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Question text is reproduced from the published NEET 2026 (cancelled) paper for study and commentary. NCERT text is quoted, not redistributed; textbooks remain at ncert.nic.in. Our mapping method, including its measured error rates, is published at /methodology.