Official websites use .gov A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
This abstract for a paper to be delivered at Cold Spring Harbor explains the role of NK-2 homeobox genes in early development. NK-2 is expressed initially by nuclei that are precursors of neuroectodermal cells, which in turn give rise to other major parts of the nervous system.