A study in scarlet: MC1R as the main predictor of red hair and exemplar of the flip-flop effect.
Human Molecular Genetics
Zorina-Lichtenwalter, Katerina K; Lichtenwalter, Ryan N RN; Zaykin, Dima V DV; Parisien, Marc M; Gravel, Simon S; Bortsov, Andrey A; Diatchenko, Luda L