The acquisition of movable jaws was a major event during vertebrate evolution. The role of NK3 homeobox 2 (Nkx3. 2) transcription factor in patterning the primary jaw joint of gnathostomes (jawed vertebrates) is well known. however knowledge about its regulatory mechanism is lacking. https://www.bekindtopets.com/limited-value-Ruth-Thompson-Dead-of-Winter-Dragon-and-Warriors-Galaxy-S20-FE-Clear-Case-p104889-super-value/