Gene Flow

Naglfar — Sun, 11 Jan 2009 01:22:00 +0000

New and improved versions of genes occasionally arise, but they can't be important unless they spread. This chapter talks about some of the factors that affected the spread of new mutations, ranging from Greek colonies to the Himalayas. In particular, we talk about some of the historical factors that may have influenced the spread of the allele causing blue eyes.