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Exam 1

# Exam 1 - Name PID Scrap paper 1 Name PID 2 Name PID Mult...

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Name_________________________________ PID __________________________ Scrap paper 1

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Name_________________________________ PID __________________________ 2
Name_________________________________ PID __________________________ Multiple Choice Part of Exam: Please enter your answers on the scantron sheet. Questions 1-11 are worth 1 point and questions 12-17 are worth 2 points. Use the image below to answer the next 4 questions: 1. In the cell on the far left, n = ? 1) 2 2) 4 3) 8 4) 16 5) none of the choices 2. Using the cell on the far left as the starting cell, which cell represents metaphase I? 1) A 2) B 3) C 4) E 5) none of the choices 3. Using the cell on the far left as the starting cell, which cell(s) represents a gamete that can form? 1) C 2) D 3) E 4) D or E 5) none of the choices 4. Using the cell on the far left as the starting cell, which cell(s) represents a daughter cell that can form through mitosis? 1) A 2) B 3) C 4) D or E 5) none of the choices Use this information for the next three questions: A young couple went to see a genetic counselor because each had a sibling affected by cystic fibrosis. Neither member of the couple, nor their parents are affected. 5. What is the probability that the female of this couple is a carrier? 1) 0 2) ½ 3) ¾ 4) none of the choices 6. What is the probability that their child will be affected by CF? 1) 0 2) 1/6 3) 1/16 4) 1/9 5) none of the choices 7. What the probability that their child will be a carrier? 1) 1/18 2) 2/3 3) 2/9 4) 1/8 5) none of the choices 3

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Name_________________________________ PID __________________________ 8. A group of cells is assayed for DNA content immediately following mitosis and is found to have an average of 6 picograms of DNA per nucleus. Those cells would have _________picograms at the end of S phase and _______ picograms at the end of meiosis I I. 1) 12, 3 2) 12, 6 3) 6, 3 4) 24, 6 5) 6, 6 9. Which is true of a species that has chromosome number of 2n = 16? 1) The species is diploid with 32 chromosomes 2) The species has 8 sets of chromosomes 3) There are 8 pairs of homologous chromosomes 4) During the S phase of the cell cycle there will be 64 chromatids 5) A gamete from this species will have 4 chromosomes.
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Exam 1 - Name PID Scrap paper 1 Name PID 2 Name PID Mult...

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