ANT208H1 Lecture Notes - Lecture 4: Puberty, Insulin Resistance, Genetic Drift
Document Summary
Anthropology 208 : developmental biology and life histories: genes, mutations, ultimately, the source of new variation*, produces new genes, recombinant + assortment, produces new combination of genes in genomes. Both of the above may have nothing to do with natural selection! Some of the forces that produce varation may have nothing to do with adaptation. The endpoints we arrive at depends on how the genome is translated into the proteome. Some of the variations we see are not heritable. Only the variations of individual bodies that are heritable can be selected for or against. Rare: single gene -> phenotype: most diseases have no single causal gene, genes don"t cause the disease, but they are only one more risk factor in, ex. A piece of dna upstream of the exons for the transcription into the lactase enzyme protein structure: affects when lactase non persistence switches on, the t allele is rarer but more common with those with agricultural.
