A Boy Is Admitted to the Hospital for an Emergency

Multiple Choice

A boy is admitted to the hospital for an emergency appendectomy.During surgery it is noted that the inflamed appendix is located on the left side,rather than the right side,and that the patient has situs inversus viscerum totalis.Mutations in which gene are known to cause this condition in animal models?

A) Pitx2
B) Bmp4
C) Hoxd13
D) Chordin
E) Tbx3