21. Several types of molecules are important in morphogenesis . 22. Morphogenesis also involves changes in the cellular structure or how cells interact in tissues.23. More recently, he has turned his attention to physical models of shoot morphogenesis . 24. He went on to consider neurobiology and morphogenesis . 25. In the brain, IQGAP3 appears to play an important role in neuronal morphogenesis . 26. Ablation of " PKP2 " in mice severely disrupts normal heart morphogenesis . 27. When expressed by mesenchymal cells it can instruct epithelial morphogenesis at epithelial mesenchymal interfaces. 28. There is very strong evidence SAMs also have a key role in neuronal morphogenesis . 29. The noncanonical PCP pathway regulates cell morphogenesis 1 ( Daam1 ) and the Rac protein. 30. It plays a role in head formation and may have multiple roles in skeletal morphogenesis .