The Book of Mormon does not give sufficient information about the background of Ishmael’s wife, the wives of Ishmael’s sons, and Nephi’s sisters to test the mitochondrial DNA of the group. Other problems for critics’ assertions include the uncertainty of Lehi’s possession of an Abrahamic Y chromosome and the complete disregard for the entire Jaredite population (remnants of which may have survived their final battle). Confident scientific conclusions are difficult to attain and cannot replace a spiritual witness of the truthfulness of the Book of Mormon.