Your Eye Colour

[Cassie]

I love that our family totally defies the genetic rule. Darker hair is supposed to be much more dominant, same with eyes, I think. My dad has black hair and my mum has blonde, so my chances of having black hair were 75% (25% blonde) because the chances are 1 in 4. My mum has a twin brother (twins are common in my family) and also has another brother and sister, and their mum had brown hair and dad had blonde - they all came out blonde, and it has been like this for generations. I want to know why it works like this for us, how it's possible if dark hair is dominant.