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Mammalian placenta is

A. a cord between mother and foetus

B. place of attachment in uterus wall where exchange of material between mother and foetus takes place

C. outer covering of foetus

D. allantoic part of the uterus

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  1. The process of synthesis of yolk by the oocyte is termed
  2. Development of egg without fertilization is termed as
  3. Oral contraceptives check
  4. The formation, development and matura- j tion of the female gamete is called
  5. For fertilization of the frog's egg
  6. During fertilization the spermatozoa penetrate through the egg membranes with the help of
  7. Grey cresent is present in
  8. A freshly unfertilised egg of hen contains
  9. The sperm produces substances of enzymatic nature of sperm lysin. In mammals, it is called
  10. Sexual reproduction in larval condition is known as
  11. Which one has the capacity to reproduce without fertilization of eggs ?
  12. The sexual embrage of the male and female frogs is called
  13. In order to become structurally and functionally a spermatozoan, each spermatid has to undergo a process…
  14. Meroblastic cleavage is found in
  15. The nervous system, epidermis and hairs and nails are derivatives of
  16. Spermatoliosis is a process by which
  17. Mammalian placenta is
  18. The allantoic vesicle arises from
  19. The substance fertilizin is secreted by
  20. Cleidoic eggs are found in
  21. When the eggs are released from the ovary of frogs they are at the
  22. In forg, the sperms released from the testis take the following route to reach the ureter:
  23. In frog's egg the divisoin is
  24. In frog, gastrulation is completed by
  25. Embryo sac in a hen's egg is formed by
  26. Human egg is
  27. Blastopore in frogs development occurs in
  28. Laternal line system of sense organs present in the skin of tadpole larva
  29. In the growing oocyte, the nucleus enlarges in size due to an increase in
  30. During normal development the activation of the egg is achieved by