Quiz  /  NEET Apomixis MCQ Quiz

  • 1. 
    In many laboratories, active research is on to comprehend the genetics of apomixis

  • Apomixis generates genetically different individuals
  • Apomixis is the method to produce seeds without fertilization
  • Hybrid plants are directly formed by apomixis
  • Transfer of apomictic genes into hybrid varieties that shall prevent hybrid vigour loss over the years

  • 2. 
    Apomixis is a form of

  • Vernalization
  • Parthenogenesis
  • Parthenocarpy
  • None of the above

  • 3. 
    Geitonogamy and autogamy both are prevented in which one of these?

  • Cucumber
  • Maize
  • Castor
  • Papaya

  • 4. 
    In plants, apomixis pertains to plant development

  • from root cuttings
  • from cuttings of stem
  • without the gametes having to fuse
  • fusion of gametes

  • 5. 
    The reason why hybrid seeds have to be produced every year is

  • hybrid seed industry tends to increase the cost of seeds
  • hybrid plants turn sterile in coming years
  • show more heterosis in coming years
  • hybrid vigour is not maintained in more than one generation as segregation of genes is initiated in the second generation

  • 6. 
    In adventive embryony, a type of apomixis, the embryo develops directly from the

  • Zygote
  • accessory embryo sacs in the ovule
  • antipodals or synergids in an embryo sac
  • integuments or nucleus

  • 7. 
    Megasporium is equivalent to

  • ovule
  • embryo sac
  • fruit
  • Nucleus

  • 8. 
    One of these statements about apomixis is incorrect

  • formation of seeds without fertilization
  • Meiotic division and fertilization of gametes takes place to form a zygote
  • Seeds are genetically similar
  • None of these

  • 9. 
    This about apomixis is true:

  • There is no fertilization involved in both apomixis and parthenocarpy
  • Apomixis produces genetically identical mother cells
  • Apomixis is observed in angiosperms and gymnosperms
  • All of the above

  • 10. 
    The difference between perisperm and endosperm is that perisperm:

  • has reserve food
  • forms by fusion of the secondary nucleus with several sperms
  • is a diploid tissue
  • is a haploid tissue
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