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Summary of events 11 I Mechanisms of spermatogenesis 15 I Mechanisms of sperm
Summary of events 19 I Oocyte growth and development 22 I Nucleic acids 23 I Protein
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active adhesive recognition amino acid amphibian Amphioxus antibody antigen apical ectodermal ridge appear archenteron archenteron roof base sequence binding blastocyst blastopore cancer cause cavity cell surface cellular Chapter chick embryo chromosomes cleavage cytoplasm derived developmental differentiation division dorsal lip duct embryo embryonic cells endoderm enzyme epidermis examine experiments factors fertilization Figure folds follicle formation gametes gastrulation genes genetic give rise gonad heart hemoglobin hormone immune inducer interaction involved kidney layer lectins lens limb bud mammals mechanisms membrane mesenchyme mesoderm mesonephric messenger RNA microfilaments microtubules migrate molecular molecules morphogenesis mouse muscle nerve growth neural plate neural tube normal notochord nucleic acid occur oocyte optic vesicle organisms pigment plant primordial germ cells pronephric prospective neural protein synthesis radioactive receptor regeneration region result ribosomal RNA role sea urchin specific proteins sperm stage stimulate structures subunits tectum tissue tryptophan tubules tumor cells ventral vertebrates yolk zygote