NEET 1989 · Class 12

Principles of Inheritance and Variation

Development of an organism from female gamete/egg without involving fertilization is

  1. (A)adventive embryony
  2. (B)polyembryony
  3. (C)parthenocarpy
  4. (D)parthenogenesis

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
32 of 32

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

How this line gives the answer

5, emb=0.7568, combined=0.6541). Verified: high — The span explicitly states 'an unfertilised egg develops as a male (drone) by means of parthenogenesis,' which directly defines parthenogenesis as development from an unfertilized egg, matching the MCQ's definition.

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Question text is reproduced from the published NEET 1989 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.