Final answer:
The injection of N-cadherin into bordering epidermal cells results in neural tube formation, which is a critical step in embryonic development as it leads to the formation of the central nervous system.
Step-by-step explanation:
The injection of N-cadherin into bordering epidermal cells would result in neural tube formation. N-cadherin is a protein that helps mediate cell adhesion, which is critical for the cells to communicate and differentiate properly. In embryonic development, growth factors signal some of the ectodermal cells to form the epidermal layer, while the remaining cells form the neural plate, which eventually folds to become the neural tube. Should there be an issue with these signaling factors, incorrect differentiation might occur, resulting in defects such as an absence of anterior-posterior or dorsal-ventral sides or incomplete differentiation of cell layers. Moreover, after the formation of the neural tube, the neural crest cells, which eventually disconnect from the epidermis, differentiate to form most of the peripheral nervous system.