biologychapt8&9exams.docx - Current Location 1 Principles of Biology(BIO102.SP13.ZB 2 Assignments 3 4 Module 5 Quizzes Exam and Study Materials 5

biologychapt8&9exams.docx - Current Location 1 Principles...

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Current Location 1. Principles of Biology (BIO102.SP13.ZB) 2. Assignments 3. ... 4. Module 5 Quizzes, Exam, and Study Materials 5. Review Test Submission: Module 5 Exam - Part 1 Multiple Choice/True/False Skip to Course Content Skip to Top Frame Tabs Menu Management Options Principles of Biology (BIO102.SP13.ZB) Home Page Announcements Staff Info Syllabus & Resources Assignments Discussion Board
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My Grades Send Email Apps Review Test Submission: Module 5 Exam - Part 1 Multiple Choice/True/False Skip to Course Menu Skip to Top Frame Tabs Content User Rebekah Breitkreutz Course Principles of Biology (BIO102.SP13.ZB) Test Module 5 Exam - Part 1 Started 3/21/13 10:26 PM Submitted 3/21/13 11:18 PM Status Completed Attempt Score 31 out of 40 points Time Elapsed 51 minutes out of 1 hour. Instructions Question 1 1 out of 1 points A group of cells is assayed for DNA content immediately following mitosis and is found to have an average of 8 picograms of DNA nucleus. Those cells would have _____ picograms at the end of the S phase and _____ picograms at the end of G 2 . Answer Selected Answer: 16; 16 Correct Answer: 16; 16 Response During the S phase, DNA is doubled. Therefore any stage after the S
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Feedback: stage would have twice the amount of DNA information until two new cells are formed, each with the proper amount of DNA. Question 2 1 out of 1 points All of the following occur during the latter stages of mitotic prophase EXCEPT Answer Selected Answer: the synthesis of DNA. Correct Answer: the synthesis of DNA. Response Feedback: DNA replication occurs during interphase, not during the mitosis. Question 3 1 out of 1 points Which of the following statements is correct regarding the events of the cell cycle? Answer Selected Answer: Interphase consists of G 1 , S, and G 2. Correct Answer: Interphase consists of G 1 , S, and G 2. Response Feedback: The cell cycle consists of interphase, mitosis, and cytokinesis. Interphase consists of G 1 , S, and G 2 Question 4 1 out of 1 points If cells in the process of dividing are subjected to colchicines, a drug that interferes with the functioning of the spindle fibers, at which stage will mitosis be arrested? Answer Selected Answer: metaphase Correct Answer: metaphase
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Response Feedback: Spindle fibers connect to the centromere and pull the chromosomes toward the midline during metaphase. If the drug colchincines interfered with the spindle fibers, the chromosomes would not be able to line up, hence arresting cell division. Question 5 1 out of 1 points If cells in the process of dividing are subjected to colchicines, a drug that interferes with the functioning of the spindle apparatus, at which stage will mitosis be arrested? Answer Selected Answer: metaphase Correct Answer: metaphase Response Feedback: The spindle apparatus is necessary to move the chromosomes along the midline of the dividing cell.
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