CBSE  /  Class 12  /  Biology  /  Sexual Reproduction in Flowering Plants

  • 1. 
    Pollination in Lotus is:

  • By water
  • By wind
  • By insect
  • All of these

  • 2. 
    Haploid plants develop by pollen are called ……..

  • Emasculation
  • Parthenocarpy
  • androgenesis
  • somatic hybridization

  • 3. 
    Closed flower:

  • Decliny
  • Cteistogamy
  • Dichogamy
  • None of these

  • 4. 
    Demerit of self pollinatlon is:

  • Unisexua
  • Dichoganty
  • Hetorostyle
  • None of these

  • 5. 
    Which structure is not found in Angiosperm?

  • Archegonium
  • Carpel
  • Anther
  • Magagametophyte

  • 6. 
    Normal Embryosac of Angiosperm is :

  • Unicellular
  • Bicelled
  • Penta celled
  • Seven called

  • 7. 
    Commonly in a mature fertilized ovule n, 2n, 3n conditions are respectively found in :

  • Endosperm, nucellus and egg
  • Egg. antipodals and endosperm
  • Integuments, synergids and egg
  • Egg, nucellus and endosperm

  • 8. 
    After fertilization ovule develops into:

  • Integument
  • Seed
  • Embryo
  • Endosperm

  • 9. 
    Parthenogenesis is common in :

  • Grape
  • Mango
  • Citrus
  • Litchi

  • 10. 
    An orthrotropous ovule is one in which micropyle and chalaza are :

  • Oblique to funiculus
  • At right angles to funiculus
  • In straight line with funiculus
  • Parallel to funiculus
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