To provide information about the development of different animal groups, To have information about reproductive system gametogenesis and fertilization of different animal groups, different stages of development to compare the different animal groups.

- Animal embryonic development processes, Molecular mechanisms regulating cell differentiation, Male and female reproductive system; Structure of testis and ovary, Meiosis-Gametogenesis (spermatogenesis, oogenesis), Sperm and egg morphology. - Egg types in various living groups (sea urchin, frog, bird, mammal), Egg covers, Fertilization, Segmentation and its types, Gastrulation and its types, Mesoderm and Coelom formation, Extraembryonic structures (vitellous sac, amnion, allantois, placenta), organogeny. - Examination of preparations of subjects such as segmentation, blastulation and gastrulation in sea urchins, organ development in frog larvae, ectoderm, endoderm, mesoderm formation and neurulation in early (hourly) chick embryos, organ development in chick embryos (daily) at light microscope level.