Just goes to prove how insane and ridiculous religion is. To say you need to learn what a religion teaches to know right from wrong when you also say we inherit the knowledge of good and evil genetically is definitely contradicting yourself because if we inherit it genetically we already know it and teaching a contradictory virtue would only screw that up. So if christians believe in the story of adam and eve which they do why would they want to change morality and teach it?
A "magical apple"? Who says it's an apple?
And who says - even going with the biblical story - that man got "perfect morality" from Eve & Adam chowing down on the fruit? As far as I know, their lives got pretty well messed up, afterwards, and that's about it. Were they really supposed to have gotten "perfect knowledge," there?
I would not say that religion is "insane and ridiculous." A lot of people get comfort and benefit from their religion. And, we *all* make unprovable assumptions, at a very basic level.
I'm aware of the negative side of religion too; on individual and group levels I often see the bad effects there. In the end, as far as morality, it's all the same thing - as individuals and as groups we have opinions, whether or not we say they are from our religion or anything else.
The apple was back when God took an active role in running things, so He probably gave it a ton of goodies such as the ability to modify genetics. Also, good and evil and right and wrong are very subjective things. I, for one, use the system Catholicism provides because it works, has worked, and, presumably, will continue to work into the foreseeable future, because it is the culmination of efforts to find a workable system, and as stated before, it works.
However, you're taking an extended metaphor and treating it as though it were literal. Please, refrain from doing this in the future.