[GourmetDan]

"People keep calling it a mutation. Why is that?"

Lactose tolerance is the mutation.

Lactose intolerance is the normal biological system.

"However, certain human populations have undergone a mutation on chromosome 2 which results in a bypass of the common shutdown in lactase production, allowing members of these populations to continue consumption of fresh milk and other milk products throughout their lives."

http://www.reference.com/browse/wiki/Lactose_intolerance

Lactose tolerance is just a normal 'loss-of-function' mutation. Nothing supporting evolution here.

[AndrewC]

Lactose tolerance is the mutation.

I don't think so. Mother's milk is lactose rich. The ability to metabolize the sugar is innate. Look at the computation example for E. Coli. It is in my post 79.

[Alter Kaker]

Lactose tolerance is just a normal 'loss-of-function' mutation. Nothing supporting evolution here.

Tell yourself whatever you need to tell yourself to believe whatever it is you feel called on to believe.