So Adam and Eve did not have the accumulated genetic mistakes (mutations) that we have.Their genes were perfect, but as genes passed from generation to generation, the now imperfect copying process in this sin-cursed world resulted in errors.
But where a child’s parents are not so closely related, inheriting a bad gene from one parent is not calamitous, because a good copy of the gene from the other parent is there as a back-up.
Today we see a steady accumulation of the number of defective genes in both human and animal populations. This is very confronting for evolutionary theory, but just what we’d expect from the Bible’s account of our history.
Originally, the Creation was ‘very good’ (Genesis ) but because of Adam’s disobedience, God cursed the world, bringing death and decay to the Creation (Genesis 3:6ff; Romans , ).
In Bradford, more than 75% of all marriages between people of Pakistani origin are believed to be between first cousins.
This has resulted in a dramatic increase in the rate of genetic defects and infant mortality.
Bradford’s Royal Infirmary Hospital has identified more than 140 different recessive disorders among local children, compared to the usual 20–30.
Across Britain, the Pakistani community accounts for 30% of all births with recessive disorders, despite representing only 3.4% of the national birth rate.
The calls to ban marriage between cousins are certainly understandable from a genetic perspective.
When first cousins marry, the chances of them both passing on just one variant (disorder-causing) gene to a child is one in eight.
marrying one another have long been in place in societies around the world.
It is widely understood that union between brothers and sisters (including half-brothers and half-sisters) results in an unacceptably high risk of their children being deformed. The more closely related two people are, the greater the likelihood of them carrying the .