Interesting genetics study on eye color
 

I always thought it was simple Mendelian genetics.

But is more complex. It is related both to differences in protein, and the amount of protein expressed.

My daughter's eyes are grey, for now, which is kind of interesting.

http://news.bbc.co.uk/2/hi/science/nature/6195091.stm

After five kids I've long noted that genetics of eye color is a lot more complicated than as taught in Genetics 101. Parents produce kids with the most amazing range of eye colors relative to their own. Gray is often a starting point. Odds are your daughter will be brown or hazel eyed. In my experience that's where gray eyes wind up. (I once had an Asian wife; actually she was half Asian half Norwegian, and I'm Dutch/British. We had two kids with hazel eyes and one light blue.)

My eyes are blue, my wife's eyes are brown.

All of our kids' eyes are brown.

I have weak eye color genes.