By transferring neural crest cells from a duck to a quail

Last updated: 12/19/2022

By transferring neural crest cells from a duck to a quail and vice versa Richard Schneider and Jill Helms 2003 demonstrated that a neural crest cells influence the development of beaks b beaks influence fitness traits c homeobox genes are conserved across species d gene duplication causes a difference in beak shape