Adam and Eve

Adam represents consciousness ('the occupant') and Eve represents 'the context'.
As such, the living human form is a representation of the union of Adam and Eve (See Also, Metaphysics, The Alchemical Marriage).
The 'Seduction by Eve' (or 'the fall') represents the consciousness developing a type of anmesia that causes the consciousness to 'forget' that it is not the form that it presently occupies.
'The Fall' is also represented by the introduction of 'evil' (knowledge thereof) into the otherwise 'All Good' (See Plato, The Form of The Good) cosmology of Eden.

This Adam and Eve stuff is not temporal (no shelf life) but represents, in an allegorical context, the human condition.

.

The biblical Adam represents all humanity which is descended from him, likewise as all humanity are descended from biblical Eve, except, of course, each other, the original ancestors. In the perfect design there were no flawed genes, all who immediately descended from them had genetic perfection. This only did not continue as there were flaws from mutations that were happening, and then over time accumulating. And so giants were born among them at some time. There were other variations too. So siblings and those about that closely related could not continue breeding with each other, and rules for eliminating incestuous relations were then being made.