Which one is not the function of human placenta

A. Helps co2 and excretory products pass from foetus to mother's body

B. Helps o2 and nutrients from mother's body enter the foetus

C. Secretes hormones

D. It protects foetus from mechanical shocks

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  1. The embryonic stage that resembles a mulberry fruit is
  2. Mammary glands are modification of ...
  3. Failure of the brain to grow in the foetus may result in:
  4. Highly sophisticated procedure of injecting sperm directly into the ovum is
  5. Mongolian idiocy due to trisomy in 21st chromosome is known as
  6. The pelvic inflammatory disease is common with which type of contraception?
  7. Embryo at 16-celled stage is called ...
  8. Approximately how long does it take for a spermatocyte to complete its differentiation into a spermatozoan…
  9. The most important region of the decidua for the nourishment of the conceptus is the deciduas
  10. Pregnancy can be detected as early as on
  11. A genetically diseased father (male) marries with a normal female and gives birth to 3 carrier girls…
  12. Ovulation occurs under the influence of high titre of
  13. Level of estrogen and progesterone are minimum at the time of
  14. The part of the sperm containing proteolytic enzymes to digest the zona pellucida is the:
  15. In which phase of menstrual cycle ovulation occurs in
  16. Which one of the following is produced early in the life of a human female?
  17. Normal sperm count is
  18. Gestation period of 280 days is calculated from time of ...
  19. Fertility in women may be impaired by
  20. Pregnancy begins with implantation of
  21. In a 28 day menstrual cycle, ovulation occurs on ...
  22. Haemophilia is more common in males because it is a
  23. In menstrual cycle the secretory phase is also known as
  24. An abnormal human male phenotype involving an extra x-chromosome (xxy) is found in....
  25. Villi of human placenta develop from ..
  26. The number and appearance of chromosomes in the nucleus of a eukaryotic cell is called as
  27. In uterus, endometrium proliferates in response to ...
  28. Which of the following is not a hereditary disease?
  29. The surgical method of contraception in males
  30. Layers of ovum from outside to inside are .