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Pregnancy begins with implantation of

A. Embryo

B. Fertilized ovum

C. Blastopore

D. Blastocyst

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  1. Level of estrogen and progesterone are minimum at the time of
  2. Embryo at 16-celled stage is called ...
  3. Fertility in women may be impaired by
  4. HCG, HPL and relaxin are produced in women ...
  5. Which part of the foetus is developed from mesoderm?
  6. Acrosome occurs in the sperm in
  7. An abnormal human male phenotype involving an extra x-chromosome (xxy) is found in....
  8. In which phase of menstrual cycle ovulation occurs in
  9. The pre fertilisation process stage of sperm before entry into the ovum is called as
  10. Haemophilic man marries a normal woman. Their off springs will be
  11. Erythroblastosis foetalis is caused by fertilization between the gametes of
  12. Cryptorchidism is ...
  13. In a 28 day menstrual cycle, ovulation occurs on ...
  14. Albinism is a congenital disorder resulting from the lack of which enzyme?
  15. What are the chances of a normal fertile couple having a baby in one year?
  16. Thick layer which surrounds the ovum is ...
  17. Immediately after ovulation, the ovum is covered by a membrane called
  18. Amniotic fluid protects the foetus from ...
  19. Pregnancy test is confirmed by the presence of
  20. Normal sperm count is
  21. Layers of ovum from outside to inside are .
  22. Combined Oral contraceptives prevent pregnancy by
  23. Correct sequence in embryonic development is ..
  24. Membrane that gives protection to embryo from external shocks is
  25. Which one occurs first in the human embryo
  26. Decreased motility of sperm <40 % is known as
  27. Chorionic gonadotropin is secreted by ...
  28. What happens during fertilization when many sperms reach close to ovum ....
  29. Cri-du-chat syndrome in humans is caused by the
  30. The functional unit of testis of man is ...