Graded Quiz Unit 6_ genetics-1

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Question 1 Correct Mark 1.00 out of 1.00 Flag question Question 2 Correct Mark 1.00 out of 1.00 Flag question Which of the following processes increases the genetic diversity of offspring? Select one: a. Mitosis b. Cloning c. Sexual reproduction d. Cytokinesis e. Fission Your answer is correct. The correct answer is: Sexual reproduction Which of the following statements about gene duplication is false? Select one: a. All duplications produce functional genes b. It can result in the evolution of novel functions in proteins c. It created much of the diversity in our genome d. Ribosomal RNA genes arose from duplications e. It can result in increased complexity Your answer is correct. The correct answer is: All duplications produce functional genes One difference between mitosis and meiosis I is that Select one: a. homologous chromosome pairs synapse during mitosis. b. chromosomes do not replicate in the interphase preceding meiosis.

Question 3 Correct Mark 1.00 out of 1.00 Flag question Question 4 Correct Mark 1.00 out of 1.00 Flag question Question 5 Correct Mark 1.00 out of 1.00 Flag question c. homologous chromosome pairs synapse during meiosis but not during mitosis. d. spindles composed of microtubules are not required during meiosis. e. sister chromatids separate during meiosis but not during mitosis. Your answer is correct. The correct answer is: homologous chromosome pairs synapse during meiosis but not during mitosis. What is game theory? Select one: a. The way hunters hunt. b. The study of how different species interact. c. The study of strategic interactions between individuals of different species. d. The study of strategic interactions between individuals of the same species in a different population. e. The study of strategic interactions between individuals of the same species in the same population. Your answer is correct. The correct answer is: The study of strategic interactions between individuals of the same species in the same population. Which of the following statements about mitosis is true? Select one: a. Cytokinesis follows mitosis. b. DNA replication is completed prior to the beginning of this phase. c. The chromosome number of the resulting cells is the same as that of the parent cell. d. The daughter cells are usually genetically identical to the parental cell.

Question 6 Correct Mark 1.00 out of 1.00 Flag question Question 7 Correct Mark 1.00 out of 1.00 Flag question e. All of the above Your answer is correct. The correct answer is: All of the above What type of genetic variance is responsible for a population’s ability to adapt to environmental changes? Select one: a. Dominance b. Additive c. Epistatic d. All of the above e. None of the above Your answer is correct. The correct answer is: Additive Genes from many isolates of the inﬂuenza virus have been sequenced. In certain regions of the genome, nonsynonymous substitutions have been found to occur much more frequently than synonymous substitutions. From this pattern we can infer that Select one: a. a great deal of genetic drift is taking place b. most of the amino acid changes are neutral c. strong stabilizing selection is acting on this gene d. strong selection for change (directional selection) is acting on this gene e. mutations that change the amino acid are disadvantageous

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Question 8 Correct Mark 1.00 out of 1.00 Flag question Question 9 Correct Mark 1.00 out of 1.00 Flag question Question 10 Correct Mark 1.00 out of 1.00 Flag question Your answer is correct. The correct answer is: strong selection for change (directional selection) is acting on this gene A normal zygote has 2 copies of each chromosome. Select one: True False The correct answer is 'True'. What would cause a cooperative strategy to become less prevalent in a population? Select one: a. A defection strategy was introduced. b. Cooperation was not fun. c. This is impossible once the cooperative strategy is in place. d. A and B e. None of the above. Your answer is correct. The correct answer is: A defection strategy was introduced. The individuals within a population have no choice whether or not to use the same strategies as their parents. Select one: a. This is true, only genetics determines an individual’s strategies and therefore the offspring has no say. b. This is mostly true, genetics has the most say in an individual’s strategies and therefore the offspring can’t help themselves even if

they wanted to. c. This is false, genetics has nothing to do with an individual’s strategies, and therefore the individual learns all their strategies by watching those around them. d. This is false, both genetics and environment has inﬂuence on an individual’s strategies, therefore an individual has the ability to be a mutant and/or choose if they’re going to use the same strategies as their parents. e. There’s no way to tell. Your answer is correct. The correct answer is: This is false, both genetics and environment has inﬂuence on an individual’s strategies, therefore an individual has the ability to be a mutant and/or choose if they’re going to use the same strategies as their parents.

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