Really, what gene is that? Since you believe that the ideas of "love", "consideration for others," etc. come from being human only and have nothing to do with God, then you should be able to prove their existence and how the characteristics like blue eyes, is passed from one generation to the next. Also, how, then, do you explain the "pouring of acid" on a 10 year old Muslim bride for not keeping the house clean enough? Or, drive by shootings? Or, the plethora of examples of "man's inhumanity to man?"