BIOL 1002 : Bio 1202 Test 1 Notes
Document Summary
Accumulation of inherited characteristics that enhance organisms" ability to. 1 change over time of genetic composition of a pop. 2 descent of modern organisms with modification of preexisting ones. Lamark- bodies of living organisms are modified through use or disuse of parts. Differences arise by some genes being switched on or off at varying times during development. All life forms use the same 20 amino acids to make proteins. All use rna and ribosomes to make proteins. Evolution not about climbing the ladder from lower to higher, evolution is more like a bush expanding from one another. Similarity between 2 organisms due to independent evolution along similar lines rather than descent from common ancestor. Change in types of organisms past/present and extinct. Not only see small changes over time but origin of major groups. Quantitative- vary along a continuum within a population (height weight)
