A boy-girl pair may be identical with a rare genetic mutation, but this brother and sister are like regular siblings born together. Can fraternal twins look identical? Created with Sketch.
A boy-girl pair may be identical with a rare genetic mutation, but this brother and sister are like regular siblings born together. Can fraternal twins look identical? Created with Sketch.
Why Identical Twins Are Usually the Same Sex The terms "identical" and "fraternal" don't describe what twins look like, but how they form. The different types of twins are classified by zygosity ...
Unlike identical twins, which develop from the same egg that divides in two, fraternal twins don't share exactly the same genetic material. That's why fraternal twins don't look identical ...