b104e02s17_answers.pdf - BIOS 104 Spring 2017 Exam II 24...

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BIOS 104 - Spring 2017 Name: Exam II, 24 February, 2017 Michael Muller, Instructor TA: This exam consists of 42 questions over 6 pages. Each question is worth 2 points on the solo exam and ½ point apiece on the take-home exam. . Please check to see that all the pages are present before you begin. Use a #2 pencil and bubble in all answers. Make sure you bubble in your name, last name first, and your UIN. Failure to bubble in your UIN will delay your exam scores being posted in blackboard. Your scores will be posted on Blackboard as soon as they are in. Choose the BEST answer for each question. Good Luck! Use the diagram to the right to answer questions 1- 4. ABC / abc are alleles located on the chromosomes. The chromatids are numbered 1, 2, 3, 4. 1. How many chromosomes are represented by the diagram on the right? A. One B. Two C. Four 2. What is the relationship between chromatids 1 & 3? A. They are homologous to each other B. They are sister chromatids 3. Which description best describes chromatids 1 & 2? 4. Crossing over would most likely occur between chromatids: 5. When do sister chromatids separate during meiosis? A. During Anaphase I B. During Anaphase II 6. Which person is the most at risk for having a baby with a trisomy?
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