So, you don't believe the human race stemmed from the first foreparents of mankind (one being male and female)? 

Moses writing Genesis is not what I posited in the argument/statement. Perhaps you are trying to demerit the Catholic Christian view on the Narrative in saying "Moses did not write." From a study I've taken, none of the Scholars (Catholic/Christian) said Moses wrote Genesis. In both Christian and Jewish traditions there are writers who are nevertheless not even the center/focus/toledote/emphasis of the events/writings. Which does not disqualify the event/account from being true. You're drawing on the angle of presumption that all Catholic scholars view Moses wrote Genesis, which is an error.