| − | Leviticus 18:7-11 elaborates in detail the relationships it regards as incestuous unions, to forbid inbreeding. Secular science was able to scientifically explain the mechanisms and risks of inbreeding only in modern times. | + | Leviticus 18:7-11 elaborates in detail the relationships it regards as incestuous unions, to forbid inbreeding. While the effects of inbreeding were apparent to ancient observers, geneticists were able to scientifically explain the mechanisms and risks of inbreeding only in modern times. |