Double Vision?

Ever since they were born, we have wondered if our girls were actually twins. They looked so similar that for the first few weeks, we alternated between drawing magic marker earrings on Coraline, and writing their initials on their heels. Were it not for the development of Coraline's hemangiomas, we still would be relying on artificial means of telling our daughters apart. Still though, we do temporarily confuse them, including the classic example where Nana went all morning thinking she had the other girl. .
But on the other hand, we don't think our girls are identical, for they had separate placentas, and as similar as they look to each other, they also look similar to our son. Since he can't be identical to the girls, why should they be identical to each other. And furthermore, which is a more likely scenario after two eggs were released - that a third egg was also released, or that after that rare event, an even rarer event occurred and one of the eggs split.

Then again, Betty and Coraline are developing at the same pace (Arthur is always ahead), they have the same preferences, same behavior characteristics, and we still do mix them up all the time. So finally we decided to figure it out. We ordered a DNA test from ProActive Genetics. The girls each got four cheek swabs tonight, and they'll get another four tomorrow morning. Once we mail them back to the company, we just have to wait the two weeks to finally get an answer to this perplexing question.