DEVELOPMENTAL BIOLOGY - central to all other areas of biology – unites cell biology, genetics and morphology - in last 25 years grew into the most exciting and dynamic field of biology…..due to the advances in three main traditions: the experimental embryology, developmental genetics and molecular biology. All animals develop similarly, that including the worm, fly, fish or mammal. - significant impact on society, in vitro fertilization, teratology, birth defects. - future impact: functional genomics and functional proteomics, disease therapy, prenatal screening, transplantation, embryonal stem cells, therapeutic cloning.