Are the Olsen twins identical or fraternal?
Me and my twin brother turned 13 on Christmas Day, we are very rare because we’re what is known as "half-identical twins", Rather than having one zygote split into two identical zygotes, this was a situation where one unfertilized egg split into two identical eggs, which were subsequently fertilized by two separate sperm cells.
So basically, our mother’s genetic material was identical, but our fathers’ contributions differed.
And even though we’re half-identical twins, we’re still mirror image. I always get muddled up with my twin brother, and he often gets mistaken for me. Simple.
No, the olsen twins are Fraternal Twins (non-identical). Just because they look alike doesn’t mean their identical, You can be an identical twin and look nothing like your brother/sister.
Fraternal twins often look more alike than children who are just siblings. In addition to the 50% (according to probability) overlap in genes that all siblings have, they also benefit from the same maternal environment while in utero. Although this won’t result in, say, the development of the same eye color, it does ensure that any subtle things caused by little quirks in the maternal environment will be shared by both twins. Also, people often get two people confused based on things other than actual static physical resemblance. Things like similar gestures and facial expressions can really amplify even a minor resemblance. For example, I am confused with my best friend all the time, despite the fact that we really don’t look similar at all. Fraternal twins are very likely to share a lot of intangible things like that, since they often spend more time together than you would expect from siblings with a separation in age. Since they’re constantly providing each other with non-verbal fe
