Figure 1
From: A worldwide correlation of lactase persistence phenotype and genotypes
![Figure 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1471-2148-10-36/MediaObjects/12862_2009_Article_1252_Fig1_HTML.jpg)
Interpolated map of Old World LP phenotype frequencies. Dots represent collection locations. Colours and colour key show the frequencies of the LP phenotype estimated by surface interpolation.