I've been gone for most of the last week. I went to pick Babybartfast up from kindergarten today and opted to go in instead of wait in the car line so I could get a hug

So the following exchange took place in front of the principal:
Me: Babybartfast! I missed you! How was your day!
Her: Mama! I love you! *big hug* Did you know that all the animals in Minecraft have DNA? It's true!!!!!
Principal: *snort*
(Babybartfast's current obsession is playing the computer game Minecraft. When she can't do that, she wants to watch videos of other people playing it on YouTube. Many of the videos are demonstrating "mods," or extra bits people write to add to the game. Apparently there's a mod out there that lets you draw DNA from the animals in the game and create your own hybrid monsters - at least, what's what I can understand from what she was describing.)
Anyway, so this led to a good discussion in the car about what DNA is. DH works at a genetics lab, which does a lot of gene sequencing, so I thought it would be neat for Babybartfast to understand a bit more about it. I explained how all living things have DNA, how most of our DNA tells our bodies how to be human, and how a little bit of our DNA makes us all different from each other and no two people have the same DNA. She interrupted me: "I know two people who do! Jasmine and a girl in my class have the same ponytail! And they have the same skin [Jasmine is a friend who is mixed race] and they both sometimes wear pigtails! Isn't that cool?"
So yeah, in her world, your DNA determines whether you can wear pigtails
