11. During embryogenesis , it directs the migration of osteoclastogenesis. 12. It is also a potent inhibitor of embryogenesis , adult formation and metamorphosis. 13. Progesterone levels rise significantly post ovulation to support the early stages of embryogenesis . 14. The process of embryogenesis involves coordinated cell fate control. 15. BMPs are involved in endochondral bone formation and embryogenesis . 16. These proteins are involved in lateral inhibition in embryogenesis . 17. Formation occurs during embryogenesis , typically between days 33 and 41 of gestation. 18. This indicates that organized growth polarity do not always exist in somatic embryogenesis . 19. Lim1 is expressed during embryogenesis to promote head formation. 20. Developmental biology can identify homologous structures that arose from the same tissue in embryogenesis .