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By "mirror image", do you mean very identical looking, or do they also have different handedness or something? I could go 50/50 on this being some term for twin
by xvedejas 6y ago
By "mirror image", do you mean very identical looking, or do they also have different handedness or something? I could go 50/50 on this being some term for twins I haven't heard before.
- rootusrootus 6y agoI mean mirror image twins. Approximately 25% of all identical twins are mirror image twins. Or mirror twins, or opposite twins. There are a few different terms for the same phenomenon. The exact cause is unknown but it's theorized that mirror image twins happen when the zygote splits a few days later than 'normal'.