How common are identical twins?

33% of twins are monozygotic (from the game files)

"Nik24X7;c-15932090" wrote:

"Neia;c-15932064" wrote:
33% of twins are monozygotic (from the game files)

What does that mean, please.

Monozygotic means identical, so 33% of twins in game would be identical.

I have had two sets of identical twins, but most of my twins are not. Interesting that Neia says the game files have such a high chance of identical twins.

I had 1 set in early gameplay, born to Johnny Zest and his wife, an asian sim I created Ana Wong. 2 girls that had the same features, eye color, body shape, the only difference was essentially hair styles. I had a set in an abandoned game save that I thought might be identical, then I realized, when they were children, that they were very similar in features and body shape, but had different colored eyes, lol.

They are about as common as the "Doublemint Twins"

Sadly I've never had identical twins.

I have remarkably bad luck even with both parents or the lot having fertility traits!

I haven't had any identical twins in my game yet, and I have had plenty of twins but there is always that one thing that is different between them.

"Linzz;c-15932927" wrote:
I haven't had any identical twins in my game yet, and I have had plenty of twins but there is always that one thing that is different between them.

Yeah, there's just always one small detail that separates them. I had one set of twins that were basically identical but there was like a 1 degree difference in the nose angle. And the annoying thing is, the twins look identical as children but when they age up to teens they look different.

I have a total of 104 sims in my game and only one set of identical twins, so I think it's safe to say it's pretty rare... I have plenty of twins that aren't identical.

To be fair, identical twins doesn't look identical. My younger sisters are identical twins (we got them DNA-tested) and they look very alike, but there are some differences.

As for in sims, I had one set that looked really, really similar, so I guess they might have been. That was in 2014 though, one of my first saves, and sadly, I don't have any screenshots anymore.