BI110 Chapter Notes - Chapter 1: Dna Replication
Document Summary
Natural selection: mathematical formulations proving how environment chose certain organisms to live on. Environmental variation: variation among individuals due to di erences in the environment. Genetic variation: genetic material transmitted from parents to o spring. Mutations arrive from random errors during dna replication or from environmental factors. If not corrected they pass onto the next generation. Evolution is when genetic makeup or a population changes over time. New species arise by divergence of population through timefrom a common ancestor. Humans and chimps share more features than they do with other species. Evolution theory predicts primates should show a nested pattern of similarity. Three major branches in life mostly made of microorganisms. Tree of life makes predictions for order of appearance.
