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

  • 1. 
    In an ovule meiotic takes place in:

  • Nucellus
  • Megaspore mother cell
  • Megaspore
  • Archesporium

  • 2. 
    In Capsella the endosperm in generally:

  • Haploid
  • Diploid
  • Triploid
  • Tetraploid

  • 3. 
    All of the following structures are found in angiosperms except ?

  • Archegonium
  • Pistil
  • Anther
  • Megagametophyte

  • 4. 
    Totipotency is

  • Development of a fruit from a flower in a medium
  • Development of an organ from a cell in a medium
  • Development of tissues of all kinds from a cell in a medium
  • Development of tissues of all kinds from a cell in a medium

  • 5. 
    Who proved that the cells are totipotent?

  • White
  • Skoog
  • Miller
  • Steward

  • 6. 
    A typical angiospermic embryo sac is usually:

  • One-celled
  • Two-celled
  • Five-celled
  • seven-celled

  • 7. 
    Fatheroflndian Angiosperm Embnology is:

  • B. M. John
  • B. G L. Swami
  • R.N. Kapil
  • P. Maheshwari

  • 8. 
    If cotyledons are brought above the soil the germination is:

  • Hypogeal
  • Epigeal
  • Vivipaiy
  • None of these

  • 9. 
    Polymbryony occurs in:

  • Maize
  • Citrus
  • Corchorus
  • Carthamus

  • 10. 
    In Monocots, grafting is almost impossible because they lack :

  • Cambium
  • Ground tissue
  • Vascular bundle
  • Parenchymatous cells
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