Educational guide 2023_24 Facultade de Bioloxía

Contents

Topic	Sub-topic
Gametogénesis and Fecundation	Spermatogenesis. Structure of spermatozoa. Ovogenesis. Hormonal control. Egg structure. Fertilization: contact and recognition of gametes. Prevention of polyspermy. Activation of the egg metabolism.
Early development.Organogenesis	Cleavage. Cleavage patterns. Gastrulation. Embryonic germ layers. Ectodermal, mesodermal and endodermal derivatives. Principles of organogenesis. Evo-Devo.
Main processes and development concepts	Phases of ontogenetic development. Developmental patterns in animal models. Determination, differentiation, growth, morphogenesis and body pattern formation. Pattern alterations: mutations of developmental genes. Modiﬁcations of the body plan in postembryonic development: heterochrony and allometry. Techniques.