Twin Zygosity Test:

A twin zygosity DNA test is a genetic test used to determine whether a set of twins is identical (monozygotic) or fraternal (dizygotic).

Here’s how it works:

• Identical Twins (Monozygotic): These twins come from a single fertilized egg that split into two, meaning they share the same DNA. They are of the same gender and look very similar.

• Fraternal Twins (Dizygotic): These twins come from two separate fertilized eggs, so they have different DNA, just like any other siblings. Fraternal twins can be of different genders and may or may not look alike.

A twin zygosity test analyzes specific DNA markers to confirm whether twins share identical genetic material, thus identifying them as either identical or fraternal. This information is often important for personal understanding, medical history, or family records.