Is that supposed to be toughie for science?
My question to the young earth creationist would be: Isn't God smart enough to know that having sex with your parents and siblings a bad idea?
Yeah unless inbreeding was not to last forever..
You know, heaven and hell.. and man's bodies were merely a space suit so a "spirit" could function in this Universe..
DNA(rna) is/are plans for the space suit and have nothing to do with what life is..