Evolution Lab Report

4. Results
No hypotheses in the discussion section were necessarily falsified, but some broad statements were made. For example; “Culture conditions obviously influence the outcome of adaptive evolution.” This statement implies that they have extensive knowledge on all the different aspects of evolution. Many scientists today will admit that we do not fully understand evolution and all the factors involved. To say that the conditions ‘obviously’ influenced that outcome is too broad of a statement considering we weren’t there to see most of earth’s evolution take place.
In the introduction, Gauge assumed that either tryptophan negative, or weak tryptophan positive genes would survive in a tryptophan-free environment. Gauge was proved correct when one of the E.coli strains carrying the mutated tryptophan gene was unable to grow. However, one of the mutated E.coli genes was proved to be weakly tryptophan producing and appeared only one week after inoculation. This result showed that the E.coli bacteria are able to survive under low tryptophan conditions. With this result, Gauge
Nevertheless, In order to improve this experiment, multiple aspects could be altered. The first thing that would need to be changed is the amount of time and generations of bacteria. Since evolution is based on the premise of mutations according by chance, you cannot assume that a mutation is going to occur at any specific time. Also, based on the methods, there seems to have only been one large trial consisting of many cultures from the same liquid medium. Even though multiple generations of E.coli were grown, the procedure was never repeated in its entirety. I believe evolution and spontaneous change take time and chance, and require would multiple trials. The researchers in this particular experiment only completed one trial then immediately characterized evolution as near