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They do look different! Even identical twins, with identical DNA, are different. Most have a slight difference in height and weight. Many people have a difficult time telling them apart because they are focusing on the wrong things. If someone looks only at the hair, they may not see that their faces are slightly different.

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16y ago
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16y ago

Identical twins would look the same, fraternal twins could be of different sexes.

In the womb, you can easily tell the difference between fraternal and identical twins because if the twins are identical, they will share the same sac. Fraternal twins will have different sacs. You can see this in the ultrasound.

After birth, it is often very difficult to tell the difference between the two types of twins because babies often look alike particularly when they are siblings even if they aren't identical genetically. If the twins are fraternal it usually gets easier to tell the difference as they get because they tend to look quite different as they age. Fraternal twins are only siblings while identical twins are genetically identical.

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12y ago

I found out because of an ultrasound but my symptoms were more severe and I cramped a lot. Then again this is my first pregnancy and no fertility treatments. I have heard from some women that their symptoms were more severe with multiples though.

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11y ago

Twins will always have different personalities, no matter if they're identical or fraternal, just because everyone is different, even if you're a twin.

Identical twins will look almost exactly the same, but will have slight differences (different birthmarks, etc.) because that's just how the egg grows.

Fraternal twins will not look the same at all, because they come from 2 seperate eggs.

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11y ago

Not all twins look exactly alike- Fraternal twins are brothers or sisters (or brother AND sister) that were born at the same time- but started as different eggs. Identical twins started as one egg that divided in two- they will look alike because they began as one person, and divided into two identical people. They have exactly the same genes.

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12y ago

There are two types of twins- fraternal and identical. Fraternal twins are only siblings born at the same time. Identical twins started as 1 egg that split in two after being fertilized. The DNA of identical twins is, well.... identical. At one point, they WERE the same person.

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15y ago

Normally by their personality and the way they act

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12y ago

identical twins can be different because they inherit different traits whille the sperm is being fertilized

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Q: How do twins look exactly alike?
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