Animal Development Mr. Price AP Biology
Acrosomal Reaction Egg penetration Receptor recognition Fusion of membranes Fast block to polyspermy
Cortical Reaction Vitelline layer separates Perivitellin space swells Hardening Fertilization Envelope Slow block to polyspermy
Activation of the Egg CR and PS increase Fusion of nucleus DNA synthesis and cell division
Fertilization (Mammals) Capacitation Sperm reaches Zona Pellucida ZP3 binding Fast and Slow Block Sperm taken in Centrosomes Mitosis begins
Cleavage Smaller blastomeres Differentiation Animal and Vegetal Pole Gray crescent marks dorsal 2 vertical before 1 horizontal Morula Blastocoel Blastula
Gastrulation Gastrula forms Invagination Archenteron Blastopore Endoderm Mesoderm Ectoderm Invagination Archenteron Blastopore Involution
Organogenesis Notochord forms Neural Tube Vertebral Discs Somites
Avian Development Blastodisc forms Primitive streak forms Archenteron created Extraembryonic Membranes
Mammalian Development Blastocyst enters uterus Trophoblast penetrates endometrium Extraembryonic layers form Gastrulation
Mammal Fertilization
Cleavage
Gastrulation (Frog Embryo)
Organogenesis (Frog)
Avian Development
Mammalian Development
Extraembryonic Membranes