This is actually an interesting topic for former Jehovah's Witnesses and from a general Christian concept. Consider that both the Hebrew and Greek words for "sin" are archery terms that generally translate into "to miss the mark" or in Hebrew "to miss the golden center of the target." Every time you see the word sin in the Bible replace it with the phrase "miss the mark."
12 That is why, just as through one man missing the mark entered into the world and death through missing the mark and so death spread to all men because they had all missed the mark—. 13 For missing the mark was in the world before the Law, but missing the mark is not charged against anyone when there is no law.
Quite frankly, I believe the whole story of Adam (which means "man" in Hebrew) and Eve (which means "Living") is an allegory. Side note - the word "rib" is actually a poor translation. Genesis correctly reads that God created the woman from the man's "side". Also, no pun intended.
So, man and woman are created. Woman is tempted by a talking serpent. The fruit of the Tree of Knowledge of Good and Evil is consumed. Prior to this man and woman have no concept of good and evil. As Taoist teach, with out a counterpart one has no concept of a thing, or "if everything is beautiful, then all things are ugly." Therefore one cannot miss the mark if all you have is one thing to look at.
Many early pieces of art depict the serpent of Genesis with a woman's head. This comes from the the Hebrew creation story of Lilith being Adam's first wife, which is whom Genesis chapter 1 refers to.