Vigenix When Vigenix crosses the placental barrier during pregnancy which is rarely the case when the mother is deficient in a particular enzyme, her mother's voice may become more severe and signs Of facial hair appear. In addition, the Vigenix level measured in the amniotic fluid is related to the adoption of stereotypically male roles in boys and girls after birth. Sex and the Hand According to a publication of the journal Science, the genes that control the development of the fingers called Hox genes also control that of the reproductive system.