BIOL108 Chapter Notes - Chapter 3: Stabilizing Selection, Intron, Reproductive Isolation

• School: University of Alberta
• Department: Biology (Biological Sciences)
• Course: BIOL108
• Professor: Trevor Pasanen

Document Summary

Change in genetic composition of a population from generation to generation. Concluded that life-forms can be arranged on a ladder, or scale of increasing complexity. Linnaeus created the binomial format for naming species. Principle that events in the past occurred suddenly and were caused by mechanisms different from those operating in the present. Mechanism of change are constant over time. Inherited characteristics of organisms that enhance their survival and reproduction in. Individuals with have certain inherited traits tend to survive and reproduce at higher rates than others because of the selected traits. Selecting and breeding individuals that possess desired traits. Observation #1 members of population vary in their inherited traits. Inference #1 individuals whose inherited traits give them higher probability of surviving and reproducing in a given environment leads to more offspring than other individuals. Inference #2 unequal ability of individuals to reproduce and survive leads to accumulation of favourable traits in population over generations.