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  1. When the eggs are released from the ovary of frogs they are at the
  2. The sperm produces substances of enzymatic nature of sperm lysin. In mammals, it is called
  3. In forg, the sperms released from the testis take the following route to reach the ureter:
  4. Spermatoliosis is a process by which
  5. The intestine of tadpole is
  6. Cleidoic eggs are found in
  7. During the development of frog, the ar-chenteron is formed in
  8. The allantoic vesicle arises from
  9. The nervous system, epidermis and hairs and nails are derivatives of
  10. Human egg is
  11. The sexual embrage of the male and female frogs is called
  12. The formation of the neural tube is known as
  13. Grey cresent is present in
  14. Sexual reproduction in larval condition is known as
  15. Blastopore in frogs development occurs in
  16. In order to become structurally and functionally a spermatozoan, each spermatid has to undergo a process…
  17. Antifertilizin is secreted by
  18. Mammalian placenta is
  19. Human beings are
  20. In the growing oocyte, the nucleus enlarges in size due to an increase in
  21. Which of the following develops from ectoderm ?
  22. During metamorphosis, the disappearance of larval organs is called
  23. During fertilization the spermatozoa penetrate through the egg membranes with the help of
  24. In frog's egg the divisoin is
  25. In frog, gastrulation is completed by
  26. A freshly unfertilised egg of hen contains
  27. How many cleavages are completed in 16 cell stages of frog's egg ?
  28. The substance fertilizin is secreted by
  29. For fertilization of the frog's egg
  30. The expulsion of completely developed foetus from the uterus is known as