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  1. Gestation period of 280 days is calculated from time of ...
  2. Pregnancy is ascertained by
  3. Most of major organs of human embryo are formed by the
  4. In ectopic pregnancy, foetus grows in ...
  5. The chemical of the ovum that attracts and holds sperm
  6. A marriage between man with normal vision and colour blind woman will give birth to
  7. Villi of human placenta develop from ..
  8. In menstrual cycle the secretory phase is also known as
  9. Which cells provide nutrition to the sperms?
  10. A genetically diseased father (male) marries with a normal female and gives birth to 3 carrier girls…
  11. During ovulation, for favourable sperm travel oestrogen causes
  12. Cri-du-chat syndrome in humans is caused by the
  13. Part of fallopian tube closest to ovary is
  14. Human placenta is
  15. The number and appearance of chromosomes in the nucleus of a eukaryotic cell is called as
  16. HCG, HPL and relaxin are produced in women ...
  17. In a 28 day menstrual cycle, ovulation occurs on ...
  18. The three primary germ layers, ectoderm, endoderm and mesoderm are differentiated during
  19. In a semen analysis, the following is not acceptable as normal
  20. The middle piece of the sperm contains
  21. Human embryo is enclosed by a sac called
  22. Fertilization is fusion of ..
  23. Increase in basal body temperature in the middle of menstrual cycle is a sign of
  24. The most important region of the decidua for the nourishment of the conceptus is the deciduas
  25. Emergency contraceptives may prevent pregnancy if used within 72 hrs of
  26. Mongolian idiocy due to trisomy in 21st chromosome is known as
  27. Pregnancy begins with implantation of
  28. Haemophilia is more common in males because it is a
  29. Failure of the brain to grow in the foetus may result in:
  30. Erythroblastosis foetalis is caused by fertilization between the gametes of