The blocking of gene expression in the ectodermal cells by BMP4. Introduction: The nervous system is composed of nerve cells or the neurons that are the most extensively spread cells among the body. The nervous system is the most entangled and widespread of all the organ systems in an animal body.

The BMP4 growth factor has inductive effect on the ectodermal cells to form epidermis by inhibiting the gene expression of Chordin and Noggin gene and preventing them to allow the default state of forming neural tissue. The absence of the BMP4 gene from the culture shows that the ectoderm develops into neural tissue...