Actually one woman, but... The point, for most Christians, of Genesis, is that mankind has fallen from Godliness and inherits a tendency to do evil and selfish acts. Would Rand have a problem with that?
Although Eve sinned first, and offered the fruit to Adam, most Christians believe the sinful nature is inherited through the father, and of course the passage of Scripture most used by them, (Romans 5) does not mention Eve, but "the first man."
Ayn Rand would have been appalled at the idea of an inherited "tendency to sin." She made a great deal of the fact that men are not controlled by forces and impulses they do not understand, but are volitional, and responsible for all their choices. It was this Calvinistic teaching which you are alluding to that she hated.
Hank