Back when I studied genetics with a balding professor who never laughed, I hoped he would give us pychology students some insight as to whether our ancestors were balding but liked to laugh- and whether our descendants might be like that too.

At the end of the lectures we knew nothing at all, needless to say, other than the origins of the color of a bean plant our professor had brought in from Bogor. Or a little about the concepts ‘recessive�