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STD 12 - 1. sexual reproduction in flowering plants — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYSTD 12 - 1. sexual reproduction in flowering plants1 Mark
MCQ
Apomictic embryos in Citrus arise from
  • A
    synergids
  • ✓
    maternal sporophytic tissue in ovule
  • C
    antipodal cells
  • D
    diploid egg.
✓

Answer

Correct option: B.
maternal sporophytic tissue in ovule
b
(b) : Apomixis is abnormal kind of sexual reproduction in which egg or other cells associated with egg (synergids, antipodals, etc.) develop into embryo without fertilization and meiosis. Development of embryos directly from sporophytic tissues like nucellus and integuments is called adventive embryony which is also a type of apoximis. $E.g.$, Citrus, mango.

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