ANTHR101 Lecture Notes - Lecture 6: Racialization
8 Dec 2015
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Common markers shows genetic relatedness (common ancestry) among populations. Markers=cluster of motion(genes that get passed on) Observing where markers cluster geographically allows us to trace population movements and pinpoint ancestors origins. Cluster of motion(genes that get passed on)=markers. We can trace the past movement of humans through these markers. Mutations crop up at a statistically predictable rate. The accumulation of markers allows us to estimate how long ago descendants shared a common ancestor. We can generally refer to the common ancestor. Not the only man and woman alive at the time but only their genetic lineages have survived. Every one can trace their genes back to two people. Markers account for 0. 1% of human variation. There is far more diversity in africa than outside africa. The people outside of africa had to interbreed with their own population thus repeating traits and minimizing diversity, while the original had more options of variation.
