The Biblical laws concerning [[menstruation]], including the setting apart of the menstruating woman and the prohibition on intimacy during menstruation, address health concerns that were not known to secular science until the 20th century.<ref name="Neuburger, Max 1910, p. 38">Neuburger, Max. History of Medicine. Oxford University Press, 1910, Vol. I, p. 38.</ref> Also, modern science has only very recently discovered that following such rules dramatically reduces the rate of illegitimacy.<ref>[http://www.sciencedaily.com/releases/2012/06/120604182027.htm How Religion Promotes Confidence About Paternity]</ref>
===Cloningand a Common X Chromosome==={{Bible ref|book=Genesis|chap=2|verses=21-22|version=KJV}} records that God made a [[woman]] out of one of [[Adam]]'s [[rib]]s. Secular scientists did not believe that [[cloning]] such a complex organism (apart from plants) was possible until 1997.<ref>[http://www.ornl.gov/sci/techresources/Human_Genome/elsi/cloning.shtml Cloning Fact Sheet] {{dead link}}</ref> It should be noted, however, that this is some do not consider this strictly 'cloning' as a clone would be identical to its original, most obviously in terms of its sex. ===Common X Chromosome=== Women can be cloned from the genetic material of men, but not the other way around, since women lack a Y chromosome. Women have the same X chromosome as men, but this was not discovered until the late 1800s. The Book of Genesis explained this thousands years earlier, describing how the first woman was created directly from man. If Eve was 'cloned' by replicating Adam's genetic material, she would more or less be his identical twin sister.
===Inbreeding===