Quote:You say that detrimental mutations are not passed forward? But that is contradicting what dawinian said when he claimed.
These are all genetic mutations that can get passed on to the next generation that have no benefit.
There is no contradiction. As Kyu mentioned, if the consequences of these genes hadn't been catered for by technology or deliberate intervention then their carries would have been at a disadvantage and eventually they would have died out, or at least not survived in great numbers.