Considering human genetics, one thing has changed, but that's a secret for now. Other than that, if you haven't read the first OC post I suggest you do. With the way you talk about these things it's almost like you decided not to read and do what you wanted, which is cool and encouraged, but in moderation. 

Everything that was here, you ask! Just ignore it and won't pop a cap in you ^_^

That should sum everything up for proper character creation, but I advise you go and reread the starting OC post for better clarification.