Identical twin sisters Brittany and Briana Deane got married to identical twin brothers Josh and Jeremy Salyers. And now, while one of the couples recently welcomed their baby boy, the other set is expecting their first child. The couples had met in 2017 at a festival for twins.

How can you tell identical twins apart medically?

2 One way to find out if a pair of twins of the same gender is identical or fraternal (different-sex twins are always fraternal), is through DNA testing. For many twins or families with twins, the only way to know for sure whether they are identical or fraternal is through DNA testing.

Is the DNA the same for identical twins?

It is true that identical twins share their DNA code with each other. This is because identical twins were formed from the exact same sperm and egg from their father and mother. (In contrast, fraternal twins are formed from two different sperm and two different eggs.)

Are twin girls more likely?

In the US, 105 non-twin males are born for each 100 non-twin females. However, males are slightly more likely than females to die in the womb. And because the death rate in the womb is higher for twins than for singleton births, female twins are more common than male twins.