Biology Questions & Answers (Compiled from UPSC, SSC ,PSC ,IBPS previous question papers)

  • Pollination is best defined as

  • transfer of pollen from anther to stigma
  • germination of pollen grains
  • growth of pollen tube in ovule
  • visiting flowers by insects
  • Ozone hole refers to

  • hole in ozone layer
  • decrease in the ozone layer in troposphere
  • decrease in thickness of ozone layer in stratosphere
  • increase in the thickness of ozone layer in troposphere
  • The hilum is a scar on the :

  • Fruit, where it was attached to pedicel
  • Fruit, where style was present
  • Seed, where micropyle was present
  • Seed, where funicle was attached
  • Which one of the following statements is not true?

  • Pollen grains of some plants cause severe allergies and bronchial afflictions in some people
  • The flowers pollinated by flies and bats secrete foul odour to attract them
  • Honey is made by bees by digesting - pollen collected from flowers
  • Pollen grains are rich in nutrients, and they are used in the form of tablets and syrups
Biology Question Answers, PSC, UPSC, IBPS, SSC Previous Papers
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