Evolutionary bio essay for final - 2859 Words

Final exam essay questions The optional final exam will consist of five of the following essay questions. Each essay will be worth five points. The final will be averaged with your other four grades. There will be a follow-up post on whether you should take the final exam, but we wanted to get the essay prompts out to you as soon as possible. 1) Two species of Hawaiian lobelioids, Cyanea floribunda and C. pycnocarpa, have diverged from a common ancestor approximately 0.5 million years ago. No fossil record is known for these species. You are trying to determine which species has been evolving at the fastest rate at the molecular or morphological level since they diverged from their common ancestor. Describe the data you would†¦show more content†¦Do not use two examples from the same topic. Do not use any examples from lecture 4. Explain why your examples lead to imperfect adaptation. As much as the organisms tried, there is no way that many organisms can achieve perfect adaptation (No organisms can achieve perfect adaptation, it doesn’t exist). For example in the theory of kin selection in which an individual who belongs to the group would be willing to sacrifice their lives to make sure that their kin will survive and be able to reproduce the next generation. For an example in the process of †¦. Which on is this an example of Squirrel, the squirrel was willing to make the call and sacrifice their lives in order to protect their kin. We may not know how fit the martyred squirrel in regard of fitness but the squirrel decided to die in order to protect the weaker, less able to defended squirrel, therefore the strong one was willing to die no matter what. Therefore, we have no way to know that the squirrel can pass on their perfect gene on to the next generation beside sacrificing its life for others. In addition, molecular evolution is another example i n which nature may show how it fails to achieve perfect adaptation. In the Baiyvet’s fox experiment, experimenters selected for desired genes and continued to let it reproduce into the next generation, the frequency for the undesired genes will decreased and therefore decrease the phenotype in the future generation.Show MoreRelatedSample Resume : School Of Science Health1613 Words   |  7 Pagesstudies of biology.[8] Molecular biology and biochemistry provides humans the tools to understand the broad group of formations, purposes and connections of proteins and their significance in biological procedures, biomedicine and biotechnology.[2] This essay will describe observational and computational methods and how they aid in deciding and predicting protein structure and function by helping the creation of new proteins. 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