What did researchers discover about the genetic mutation cau

What did researchers discover about the genetic mutation causing the loss of pelvic spines? It results in a protein that is no longer functional. It occurred in a similar DNA region in freshwater stickleback populations all over the world. It is found in a regulatory region (a \"switch\") upstream of the coding region of the Pitx1 gene. It is found in the coding region of the Pitx1 gene.

Solution

It occurred in a similar DNA region in freshwater stickleback populations all over the world. It is found in a regulatory region(a\"switch\") upstream of the coding region of the Pitx1 gene.