Back when I was playing Sims 2 (I've never played Sims 3) the genetics system was obvious and easy to understand. Each trait for each Sim involved two alleles; one expressed and the other not. The child received one allele from each parent, and the dominant trait of the pair would show in the child. Townies and Sims made in CAS always started out with the two alleles in each pair the same. It was easy to track the recessive genes down the generations and determine which gene was the unexpressed one in many of the Sims. But now, in Sims 4, random genes are popping up in the children of Townies and CAS Sims. Especially the Goth family. My question is: does anyone know if there's an official word on how the genetics work in Sims 4? Do they still have alleles and dominant/recessive genes?
Julianne Lee
Simmer since 2001
6
Comments
Simmer since 2001
are you talking about traits or genes as in how they look??
Townies have random kids with random genes. They don't follow a pattern when they're generated, but because of familial ties, they'll carry on genes of their relatives, which applies to adopted children too.
In-game children you made via Try for Baby or if you use MC Command Center's insemination are more or less interesting since there are slight chances of them obtaining features that were only prevalent in their great/grandparent. (Like they'd get their hair color or even their body type, sometimes even look 90% like them if their parents are wildly different in appearance). CAS sims generally follows the same pattern, it seems. Extra genes are usually explained by the sim's background. For example, some noses look different on males than on females. They're usually larger and/or more defined on men, when in females most features are generally softer.
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Based on the kids I've had its usually a general mashup of the parents.
My sim with red hair and brown eyes married someone with black hair and green eyes. Their kids both had red hair, but one had brown and the other had green eyes. The one with green eyes had more features from her dad.
Then the redhead, brown eyed sim married a blond, blue eyed sim and they had a son with red hair and a daughter with blonde, both with brown eyes. The son looks like his dad, daughter looks like her mom.
The original sim I started out with though had blue hair and her husband had brown hair. That's where the random red hair came from I guess, since kids can't have blue hair. I was still kinda sad to see the red become so prevalent though when it initially wasn't there qq
so the genes can be changed. Wish I could change Bella's bust, I don't want her daughters having that size bust.
Here's a pic of the parents:
& he's a pic of their adorable children:
makes you wonder where the blue skin comes from in their genetics.
I've just made a new alien family, I'm a little hooked on the alien sims at the moment. anyway I made one child genetically their child, but mum is preggies so I'm wondering what colour the baby will be. his blue and she is light purple. have fun with yours.
Awesome, have fun with your family as well! I love my aliens lol
Polyrhythm: What do you mean by "tags,?" I've suspected something like a grouping of colors for eyes and hair, but nobody has said anything like that until you just did. What are "tags," and how do you think they work? What is Sims4Studio? How have you identified that they exist? This could explain some of the randomness I found in my Goth family.
Simmer since 2001
These are all the hair colors
These are the eye colors
The purple eyes being tagged as amber though is the only thing weird though, everything else is tagged correctly. This is why some CC hair/eye colors can cause wonky genetics, if it's a color that's nonexistent in the tags or if the creator tagged the wrong color (like red CC hair tagged as brown)
Simmer since 2001
Simmer since 2001
Simmer since 2001
Top row, left to right: black, dark brown, brown, light brown, hazel green, light green, light green, green, hazel blue
Bottom row, left to right: hazel blue, aqua, light blue, blue, gray, gray, light brown, amber, amber
So there are no eye colors that use the hazel, golden or honey colors, and several use the same color tag, which will lead to things that seem off in genetics.
Like two parents with the duller light green eyes can have a child with the brighter green ones
Or parents with the grayish hazel blue eyes can have a child with the more blue looking ones
I have a problem with the top row hazel blue. I'm doing a 100 baby challenge, and the sim that I started it out with has those eyes. She has had 20 kids now and none of them have those eyes. They always have their fathers eyes or the light brown ones... It's so irritating!
For now I have been using the cas cheat to give them their mothers eyes. But it kind of feels like cheating, which I don't like to do in my games