So for the passed few games I've been using a dad (me) and a daughter. I made the daughter using the 'play with genetics' thing, using only myself. Then I made her into a child and tweaked her around to make it more interesting than just a girl version of myself.

My question is: Is there a way to 'Make mom'? I have overwatch and nrass and all that spiel; should I use the mod to mix a child up and that should be what the mother would have been in a sense? Sorry if that's confusing, I'm trying, here.

If you mean family tree wise you can simply create the mom, add her to the family and I don't actually have my game with me to check but I believe under nraas's master controller there's a "family" option somewhere and from there it gives you the choices of "add parent" etc. depending on whichever sim you choose. This will create the "mom" relationship/spouse for the family.

You Need to have MasterController and MasterController Integration Module installed
Click on The Sim you want to assign another Sim to> NRaas>Master Controller>Advanced>Family>Add (Parent - Sibling, etc)> Select the Sim from the list and click OK

I think the challenge would be to make a "mom" using genetics from the child and the father. In other words, using genetics to get "father" + "mother" = "child", can you solve the equation for "mom"; what mom is needed for this dad to have a daughter who looks like this.

I kinda think the EA genetics kinda sucks.

NRAAS just creates the family relationship, and isn't concerned with genetics.

NRaas MasterController and the Cheats Module has a Play with Genetics function. It can be used on newborns or sims of any age already in game. For more detail and how to use the function see: Play With Genetics (PWG) and How Can I Copy Features From One Sim To Another? On This Page