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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
Apomixis is
  • A
    formation of seeds by fusion of gametes
  • ✓
    formation of seeds without syngamy and meiosis.
  • C
    formation of seeds with syngamy but no meiosis.
  • D
    None of the above
✓

Answer

Correct option: B.
formation of seeds without syngamy and meiosis.
b
In plants, normal sexual reproduction includes meiosis and fertilization . It is called amphimixis. But in some plants abnormal sexual reproduction called apomixis has been observed. Apomixis includes abnormal sexual reproduction in which egg or other cells like synergids and antipodals develop into embryo without fertilization and meiosis. The term apomixis was given be Winkler $(1908)$ eg. Citrus, Rannunculus.

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