Layers of ovum from outside to inside are .

A. Corona radiata, zona pellucida, vitelline membrane

B. Zona pellucida, corona radiata, vitelline membrane

C. Vitelline membrane, zona pellucida, corona radiata

D. Zona pellucida, vitelline membrane, corona radiate

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  1. Pregnancy begins with implantation of
  2. Human eggs are
  3. Most of major organs of human embryo are formed by the
  4. Which part of the foetus is developed from mesoderm?
  5. Chorionic gonadotropin is secreted by ...
  6. Ovulation occurs under the influence of high titre of
  7. Gestation period of 280 days is calculated from time of ...
  8. When there is no fertilization, the corpus luteum ...
  9. Part of fallopian tube closest to ovary is
  10. In infertility treatment the ovum is fertilized outside the body and injected into the uterus
  11. Fertilization of the ovum takes place in
  12. Tunica albuginea is related to
  13. In ectopic pregnancy, foetus grows in ...
  14. The number of chromosomes present in sperms
  15. Acrosome of sperm contains ...
  16. Acrosome occurs in the sperm in
  17. Pregnancy test is confirmed by the presence of
  18. Identical twins are also known as ..
  19. Emergency contraceptives may prevent pregnancy if used within 72 hrs of
  20. Part of sperm that passes into ovum is
  21. Correct sequence of hormone secretion from beginning of menstruation is ...
  22. Which one is not the function of human placenta
  23. Cu ions released from copper-releasing intra uterine devices (iuds)
  24. After fertilization, implantation of human embryo takes place on
  25. Immediately after ovulation, the ovum is covered by a membrane called
  26. Membrane that gives protection to embryo from external shocks is
  27. Cryptorchidism is ...
  28. A child's blood group is 'o'. The parent's blood groups cannot be
  29. Hormones that control the growth and maturation of graffian follicle is
  30. Albinism is a congenital disorder resulting from the lack of which enzyme?