Can Identical Twins Be Different Genderの注目ポイントを分かりやすくまとめてご紹介します。

Now, let’s talk about the real-world version of your friend Sarah’s question. Jen isn’t a rare chromosomal anomaly—she’s a trans man. And Sarah is a cis woman. They are still genetically identical twins, but their genders don’t match. Does that break the rule? Nope.

Gender identity is your internal sense of self—it’s not coded on your chromosomes. Studies suggest that factors in the womb, like hormone exposure, can influence gender identity. In other words, Jen’s brain may have developed male traits even while his body developed female, shaping his identity differently from Sarah’s. Being a twin doesn’t mean you have the same consciousness, you know?

Monozygotic Twins Different Gender

So yes, you can absolutely have two identical twins where one identifies as a man and the other as a woman. They share the same DNA, but the brain and soul have their own agenda.