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

Sexual Reproduction in Flowering Plants

Class 12 · Biology

91 questions29 easy36 medium26 hard

Sample Questions

Q1.Which of the following plants produces cleistogamous flowers?

  • ARose
  • BViola
  • CSunflower
  • DHibiscus

Q2.The intine of a pollen grain is made up of:

  • ASporopollenin
  • BCellulose and pectin
  • CLignin and suberin
  • DChitin

Q3.Geitonogamy is genetically similar to autogamy because:

  • AIt involves different plants
  • BPollen grains come from the same plant
  • CIt always requires wind as pollinator
  • DIt produces genetically diverse offspring

Q4.Seeds of which family of plants can retain viability for months?

  • AGramineae only
  • BRosaceae, Leguminoseae and Solanaceae
  • CCruciferae only
  • DLiliaceae only

Q5.In monosporic development of the embryo sac, how many megaspores are functional?

  • AOne
  • BTwo
  • CThree
  • DFour

Q6.This is a sample question to preview what you'll get in the full practice test...

  • A. Option one
  • B. Option two
  • C. Option three
  • D. Option four
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Concepts Covered

Agents of pollinationApomixis and polyembryonyDouble fertilisationEmbryo developmentEmbryo sac developmentEndosperm developmentFlower structureFruit developmentMegasporogenesisMicrosporogenesisOutbreeding devicesPistil and megasporangiumPollen grain structurePollen-pistil interactionPollination typesSeed structure and formationStamen and microsporangium

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