Mutations in the Pax6 Gene Cause Developmental Defects in the Eyes

Multiple Choice

Mutations in the Pax6 gene cause developmental defects in the eyes of flies, mice, and humans. This suggests that:

A) the eyes of flies, mice, and humans evolved by convergent evolution.
B) Pax6 may be a master regulator of eye development.
C) Pax6 has been evolutionarily conserved.
D) Pax6 may be a master regulator of eye development that has been evolutionarily conserved.
E) Pax6 may be a master regulator of eye development that has evolved independently in the lineages leading to flies, mice, and humans.