Question about breeding, CAS, and genetics
Zazazu:
Well, if you take a bunch of recessives and breed them with a bunch of dominants, you are going to get a second generation that is all dom/recess. sims. Then, if you breed that second generation with each other, you have a 1/4 chance of an expressed recessive. If you breed them with homogeneous recessive townies, that goes up to approx 3/4 odds of an expressed recessive. Of course, odds are individual between eye and hair colors, so you have a chance of 1/16 for any child to be recessive/recessive in an interbreed situation, and 9/16 in a breed with a recessive/recessive townie.
In other news, am I the only one who finds it shocking how many sim players don't know which eye and hair colors are recessive/dominant? Are schools just not teaching basic genetics anymore?
Aelia:
Heh, I loved that bit in science. I always wanted to have sex-linked genes in the sims but alas, it was not to be.
BastDawn:
I think sometime after I graduated from college, I read that new things had been learned about genetics that made predicting hair and eye color far more complex. Apparently, it's actually possible for two blue-eyed parents to have a brown-eyed child. I don't remember the mechanics of how and why it can happen, though. That might have something to do with it -- or there might have been too many cases of kids suddenly discovering that "daddy" was really the postman. :P
Jelenedra:
Some people's genetics do weird things. My father is the only brunette out of 5 kids. My grandmother was a brunette, but she gave birth to 4 blondes. My father goes on to spawn my sister and myself. I was born with brown hair that turns red (mother is a red head) if I spend too much time in the sun. My sister was born BLONDE and slowly her hair darkened until it was the same shade as mine. My mother, on the other hand, is the only red head out of group of black and brown haired siblings.
Also, my mother's eyes are technically brown, but they have a large blue ring around the outside edge of her irises. My sister's eyes are blue with a small shot of brown in the middle. Mine are brown with a smidgen of light gold. Both parents supposedly have brown eyes.
ElfPuddle:
Quote from: jolenedms on 2008 July 24, 06:03:16
Aren't the genes I started with supposed to be dominant?? I was figuring on like 5 or 6 generations before I got a dam redhead!
No. Dominant genes are dominant. It has nothing to do with what you started out. And, unless your redhead is holding back a lot of water, it's damn redhead.
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