SI BIO 1306 Dean Spring 2020 Final Exam Practice Test KEY

SI BIO 1306 Dean Spring 2020 Final Exam Practice Test KEY * Use this to study before the exam, do not in any way use this practice test while you are taking the actual final, that is cheating and will be recorded by Respondus whether you know it or not *The actual final exam may or may not be in order of the actual exams, so do not expect that  1. True or False: Eukarya are known for having a high gene density. A. True B. False 2. Within Eukarya, there is a systemic relationship between genome size and phenotype. A. True B. False 3. Which of the following is a correct statement regarding the human genome? A. 20% of the genome is introns B. 44% of the genome is regulatory sequences C. 75% of the genome is large segment duplications D. 5% of the genome is exons 4. Which of the following statements is not correct regarding mobile genetic elements? A Transposons can either leave a copy at the original site or not leave a copy at the original site B Retrotransposons leave a copy at the original site C Retrotransposons utilize reverse transcriptase D Transposons only leave a copy at the original site 5. Which of the following correctly explains the Theory of Gradualism? A. Organisms gradually acquire new characteristics driven by need and can be lost through disuse. B. The only way to evolve was through disasters on earth C. Profound geologic changes were responsible were cumulative D. Gradual Geologic changes have not changed throughout Earth’s history 6. Which of the following is false regarding natural selection? A. Natural Selection ensures a trait is always favorable in one environment or another environment. B. Natural selection can act only on heritable traits H Deville C. A population is the smallest group that can evolve over time. D. Natural Selection is the mechanism of evolution 7. Two animals have a similar body shape and both live in super hot and arid environments like the desert. They evolved independently and do not share a common ancestor. They do however live in different deserts, one animal lives in a desert in Arizona while the other animal lives in a desert in Egypt. What do these animals demonstrate? A. Homology B. Analogy C. Fusion D. Reinforcement 8. Which of the following is a correct statement? A. Natural selection is when an organism’s traits match environment B. Gene flow is chance events that cause allelic frequency changes C. Genetic drift is the transfer of individuals into/out of populations D. Microevolution is the change in phenotypic frequencies in a population over time 9. Which of the following is a correct way to represent Linnaean taxonomy? A C. Lupus B C. lupus C Canis Lupus D c lupus 10. Which of the following is correct regarding Hardy Weinberg? A. Describes gene pool of a population that is evolving B. Describes a gene pool undergoing natural selection C. States that shuffling alleles during meiosis and random fertilization does not change allele frequency in the population D. Describes a gene pool with abundant mutations 11. Who is responsible for the theory that the only way to evolve is through disaster? A James Hutton B Charles Lyell C Cuvier D Darwin 12. Which of the following is not an example of a post-zygotic barrier? A. Reduced Hybrid viability