Black and White Twins: Fact or Fiction?

You may have seen pictures or heard stories where “twins” look completely different. One has blonde hair, while the other is a brunette. One is very tall, while the other is on the shorter side. One is black, while the other is white — wait what? How is this possible?

“Twins who look so different are very striking to the general public, but to a geneticist, it’s not really that weird,” says Janet Boughman, executive vice president of the American Society of Human Genetics.

In a case where both parents are bi-racial, a type of genetic mixing can be created with their dark-skinned and light-skinned genes. One twin can inherit more of the dark-skinned genes, while the other can inherit more of the light-skinned genes. The same idea can be true with one Caucasian parent and one African American parent.

Although black and white twins are very rare, there is a chance that they can become more common as the number of interracial couples grow.


This drug test form must be completed before check out. The info is required in order to create your donor pass. A donor pass must be presented at the collection site with a valid photo ID. Once the form is complete, you will be able to proceed and check out. Your donor pass will be emailed to you, in most cases same day, or within 24 hours. ALL DONOR PASSES ARE VALID FOR (7) DAYS. Collection site is selected based on the zip code you provided.

Once the order is submitted there are NO REFUNDS. You can only request an extension or drug test credit in case of cancelation.

Thank You for getting in touch with us!

We'll contact you shortly!