Lecture 22: Evolution and Development
Initial Clues from Genomics
-Humans ~22,000 diff coding genes
-Most shared with other organisms
-e.g. Humans-Chimps share 96% of DNA
Not which genes
But when, where, and how many genes expressed
o = Regul
Lecture 20-21: Speciation I
1) What are species? Why are there Species?
-Species concepts: BSC vs. PSC
2) What factors promote divergence?
-Gene flow, selection, drift
3) Prezygotic versus postzygotic isolation
4) Gene flow vs selection
-Allopatric vs sym