Question

About 9000 years ago, two parents were surprised to discover their teenage daughters' ability to drink milk and not get sick like everyone else​

Answer 1

But around 8,000 years ago in what's now Turkey — just when humans were starting to milk newly domesticated cows, goats and sheep — mutations near the gene that produces the lactase enzyme started becoming more frequent. And around the same time, adult lactose

Step-by-step explanation:

people started to build lactose tolerance