strangetomato | Barefoot, pregnant, and at the mercy of InSIM: testing genetics

Recently, I tried fiddling with the recessive genetics in Strangetown, using SimPE, since

madame_ugly was nice enough to explain it all to me a while back. The return of InSIM made it easy to test them out, so that's just what I did, using my favourite approach - the HANDS ON method.

Yes? Is there something you all wanted to tell me?

That's right, my friends. You got knocked up via InSIM, and you'll have no idea who the other parent is... oh, wait, yes you will. The green ones are Johnny's.

Ophelia: Okay, it's time to clean up these babies, guys! Get to work and start picking them up.

I love how the children of Ripp and Ophelia have such a wide range of skintones, instead of just ending up averaged out (that seems to always happen for me).

Even with all of those babies, I didn't get any kids from Johnny with red hair, so I'm not sure if I correctly changed his genetics. I'll have to test it out again. All of these kids had blond hair, so Ripp's recessive genetics are definitely working (I had some grey eyes too).

It's so nice to have InSIM back. I'm not sure if my sims agree, though.

Flat | Top-Level Comments Only

Dom is what you see (recessive is the behind the scenese).

So if Johnny was dom blonde and breeding with two sims with recessive blonde, then I think that's how blonde is "winning". (and with Ophelia, who I assume is blonde for BOTH, I'd say your chances of red are even LESS). I'd say switching it so both partners have recessive red would give you much better odds.

I was able to get twin redheads from a red/red and black/red pairing (that's Jupiter and Onus's twins daughters, in case you were wondering--and one was green the other not).

OH, for the skin, did you switch Johnny's so the green wasn't his only choice? You could set him to have a recessive skin (Jenny's tone) and you might get more variety than constant green babies.

Yeah, there's the dominant trait and the hidden recessive for each sim, but those traits are either dominant or recessive against each other too. Red and blond should be equal, and if you get one from each parent, they both have an equal chance of "winning", while they would always lose against black or brown. I'm fairly certain that's how it works. So, if Johnny and Ophelia both had recessive red, they should have a 50/50 chance of red hair.

I tested it out again, after I insured that both Johnny and Ophelia had recessive red (strangely enough, Willow Nigmos has character data saying she has red hair. I've always found that an odd genetic combo). Of four children, all had blond hair. I don't know if I'm just unlucky, or red really is MORE recessive (which would make sense, like in real life). Maybe it only has a 25% chance against blond.

I like getting green babies, but I did give Johnny recessive skin too, since he should have it.

AAAAHHHH, too much "science".

What next? MATH?

If you really wanted to figure it out, I'm sure someone somewhere has fully documented how sim genetics works. I bet there's a MATY thread about it (a long and boring MATY thread that will make your eyes roll back in your head and pray for the sweeeeeet release of death--ever notice how a lot of MATY threads have that effect?)

Next up... our guest lecturer, Pascal Curious, teaches us about quantum physics. *snicker*

Yeah, maybe I should look it up (and try to stay awake - though it shouldn't be a problem because it fascinates me), though I'm sure I did read that about which genetics are dominant and which are recessive. For eyes, the brown and dark blue are dominant, and the green, grey, and light blue are recessive. All alien features are dominant. That's true, from what I can see.

Ooh, let me throw THIS monkey wrench into your works.

Gunnar Roque's alien daughter has NORMAL eyes. So maybe alien genetics aren't always that dominant?

Nope, that still makes sense. Gunnar has brown eyes, which are also dominant, so you had a 50/50 chance of getting brown eyes. Alien eyes aren't more dominant that the dominant eyes - they're the same.

Alien skin is dominant over all other skins, though, unless you're using custom skin, which is about equal.

*snicker* Can't stump me...

Ahh, I didn't realize that "brown trumped alien". This is like playing poker. I just need to memorize what beats what and I'll be fine!

So when sims have twins I guess the game just throws you a bone and you get a good chance of getting one of each (in the case of green + nongreen skin OR competing hair/eyes)? (at least in my experience I've had a lot of "one of each" twins)

Well, it doesn't trump it as much as it can go head to head with it. It took me ages to see an alien sim born with non-alien eyes like that.

I guess you just get one more shot at the random genetics with the twins, so you can often hit on or more of the recessives.

Jumping into the fray and dusting off my (limited) knowledge of real genetics. There is a grid you can use (basically a box split into four smaller boxes)That shows how dominate and recessive genes will pair up (taking one gene for each from each parent).
Taking blonde/red and blonde/red and putting them in the square you come up with the squares looking like this:
1 BB 2 BR
3 BR 4 RR

If blonde comes through more dominate then red then your children have a 75% chance of being blonde. 25% chance of having a true redhead. There is a 50% chance that any offspring will be carrying the gene for red hair and a 25% chance of an offspring being totally blonde.

I hope that all made sense, I just came in from mowing the lawn. :)
Also, this is for real biology, I have no idea what works for sims.
This concludes our biology lesson for today. Memorize this...there will be a test. ;D

Barefoot, pregnant, and at the mercy of InSIM: testing genetics

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