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6. At which stage of mitosis do spindle fibres contract and pull chromatids apart?

  • Prometaphase
  • Metaphase
  • Anaphase
  • Telophase

7. At what stage does the blastocyst implant?

  • Approx. 8 days
  • 2 weeks
  • Approx. 1 day
  • 8 weeks

8. What develops within the epiblast?

  • Chorionic cavity
  • Amniotic cavity
  • Primary yolk sac
  • Bilaminar embryonic disc

9. The outer layer enclosing the blastocyst cavity is the...?

  • Trophoblast
  • Exoblast
  • Endoblast
  • Epiblast

10. What are the cells formed by the cleavage of a fertilised ovum known as?

  • Blastocoeles
  • Blastomeres
  • Blastocytes
  • Blastocysts