110%20Final%20Exam%20F09%20Green%20Key

110%20Final%20Exam%20F09%20Green%20Key - Biology110Fall2009...

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Final Exam Biology 110 – Fall 2009 Dr. David H. Bos INSTRUCTIONS: Fill in your BIOL 110 code number and NOT your PUID in the section of the scantron sheet marked: Student Identification Number. The use of calculators, cell phones or other electronic devices is not allowed during the exam. Read each question carefully and choose the best answer. There are 67 questions on this exam. There is only one correct answer for each question. Do not fill in multiple answers, as they will be marked incorrect. Turn in only the answer sheet when you are done. You may keep the exam. Take your time, think and good luck! 1. Which populations typically display exponential growth? a. Populations that are very large b. Populations that are near their carrying capacity c. Populations that have a lot of genetic diversity d. Populations  that  are  small e. All populations 2. The maximum population size an ecosystem can support over a long period of time is: a. Trophic level b. Carrying  capacity c. Biotic potential d. Environmental interaction with genes e. Generation time 3. What is the allele frequency of an allele that occurs 100 times in a population with 1000 haploid individuals? a. 1% b. 2% c. 5% d. 10% e. 20% 4. The specific combination of alleles in an individual is referred to as: a. Genotype b. Phenotype c. Biotic potential d. Genetic diversity e. Allele 5. One reason two individuals with different genotypes might have the same phenotype is: a. High levels of allelic polymorphism b. Interactions of genes and the environment c. Balanced allele frequencies d. Haploidy e. Genetic  dominance 1
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6. What is the relationship between evolution and natural selection? a. Evolution is a theory that best explains the directly observed phenomenon of natural selection b. Natural  selection  is a theory  that  best  explains  the  directly  observed  phenomenon   of evolution c. Evolution is the mechanism that drives natural selection d. Evolution is change that occurs during a person’s lifetime and natural selection explains why that change occurs e. Evolution is change in domesticated animals and natural selection is change in nature 7. In artificial selection, why do future generations have different characteristics than their ancestral populations? a. Because animals that are born are biologically different from their parents b. Because  only  a few  animals  in a generation  reproduce  and  the  future  generations   reflect  the  characteristics  of the  breeders,  rather  than  the  entire  ancestral   population c. Because large changes occur in each new generation d. Because selective breeding occurs at random, causing random fluctuations in the phenotypes of each generation e. Because all sexually mature individuals are allowed to reproduce each generation to increase genetic diversity 8. Observational and experimental studies of evolution have shown that: a. Evolutionary change has occurred throughout the history of life on earth
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110%20Final%20Exam%20F09%20Green%20Key - Biology110Fall2009...

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