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Biology 111 Lab Practical Study Guide

by: Taylor Notetaker

Biology 111 Lab Practical Study Guide Bio 111 - Fundamentals of Biology II

Taylor Notetaker

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Questions and answers for the test!
Fundamentals Of Biology II
Athena Anderson, PhD and Mark Browning, PhD
Study Guide
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This 5 page Study Guide was uploaded by Taylor Notetaker on Saturday February 13, 2016. The Study Guide belongs to Bio 111 - Fundamentals of Biology II at Purdue University taught by Athena Anderson, PhD and Mark Browning, PhD in Winter 2016. Since its upload, it has received 67 views. For similar materials see Fundamentals Of Biology II in Biological Sciences at Purdue University.


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Date Created: 02/13/16
Biology 111 Lab Practical Questions Study Guide 1. In humans the diploid number of chromosomes is 46. As a result of meiosis, which of the following would you expect? A. Each gamete produced by a person should contain one chromosome from each pair found in a diploid cell. B. Each gamete should contain 46 chromosomes. C. The diploid number in the next generation of people should be 23. D. All of the above are expected. E. Only B and C above are expected. 2. Note the graph below. Which of the following is true?   A. Period #1 is exclusively within prophase. B. At no time during Period #2 are single­chromatid chromosomes present. C. Period #3 represents a phase of mitosis that is not part of the cell cycle. D. Period #4 is exclusively within anaphase. E. Chromosomes are clearly visible during some portion of period #2. 3. Given the data in the table below, which of the following is/are true? Number of Number of Number of Stage of cell  cycle chromosomes per chromatids per chromatids per cell chromosome cell G1 of  interphase 46 #1   G2 of  interphase #2 #3   Prophase       Prometaphase       Anaphase #4 #5   Telophase       A. Blank #2 should contain the number "92." B. Blank #3 should contain the number "2." C. Blank #4 should contain the number "46." D. All of above are true. E. Only A and B are true. 4. When during meiosis are the homologous chromosomes pulled towards opposite poles of the cell? A. Prophase I B. Metaphase I C. Anaphase I D. Prophase II E. Anaphase II 5. Which of the following is/are characteristic of a pair of homologous chromosomes? A. The two chromosomes hold no loci in common. B. One member of the pair has a maternal origin and the other a paternal origin. C. The two chromosomes are dissimilar in size and shape. D. All of the above are true of a pair of homologous chromosomes. E. Only A and B are true of a pair of homologous chromosomes. 6. Given the data in the table below, which of the following is true? Phase of the Average number of Percent of total Duration of phase, cycle cells in phase cycle 10 hr cycle Interphase 70     Prophase 20     Prometaphase 5     Anaphase 2     Telophase 3     A. The duration of the phase during which chromosomes move toward opposite poles is 0.2 hr. B. The duration of the phase during which chromosomes move toward opposite poles 2 hr. C. The duration of the phase during which chromosomes move toward opposite poles 7 hr. D. The duration of the phase during which chromosomes move toward opposite poles 0.5 hr. E. The duration of the phase during which chromosomes move toward opposite poles 3 hr. 7. Which of the following is/are true? A. The results of a t test help you decide whether chance explains the difference between two sets of measurements. B. The t test is appropriate when analyzing ratio data. C. You must compute means to use the t test. D. You must compute standard deviations to use the t test. E. All of the above are true for the t test. 8. Which of the following statement(s) is/are consistent with the genetic model studied in the Drosophila lab? A. Two alleles control the expression of each trait. B. During gamete formation, alleles separate and end up in different sperm or eggs. C. Each gamete contains one allele for a given trait. D. All of the above are consistent with the model. E. Only B and C are consistent with the model. 9. A wrinkled wing fly and a fly with wild type wings are mated. All of their offspring have wrinkled wings. What does this tell you? A. Wild type wings are apparently recessive to wrinkled wings. B. Both parents are heterozygous for wing type. C. One parent is heterozygous for wing type and the other homozygous for wing type. D. Both parents are apparently pure-breeding. E. Both A and D are likely to be true in this case. 10. Note the bean weight data below. What is the number of degrees of freedom (df) associated with these data? Data set #1: [3,5,7,8,9,5,8] Data set #2: [5,10,8,4,3] A. 0.05 B. 1 C. 12 D. 11 E. 10 11. Two flies with the se/se genotype are mated. Which of the following is the best prediction for their offspring? A. All of the offspring will have sepia eyes. B. All of the offspring will have red eyes. C. Three-quarters of the offspring will have red eyes; the rest will have sepia eyes. D. Three-quarters of the offspring will have sepia eyes; the rest will have red eyes. E. One half of the offspring will have red eyes; the rest will have sepia eyes. 12. During the Drosophila lab you simulated a cross between two flies that were heterozygous for two pairs of genes. Which of the following best represents the ratios of the phenotypes from such a cross, if the genes are on different chromosomes? A. 3:1 B. 9:3:3:1 C. 1:1:1:1 D. 1:1 E. The ratio cannot be stated without knowing how frequently crossing-over occurs. 13. Given the data below, which of the following is true?  mean of one sample = 12, calculated from 5 observations mean of another sample = 10, calculated from 7 observations standard error of the difference (su) = 1 A. The degrees of freedom for this problem are 12. B. The degrees of freedom for this problem are 12 x 0.05. C. The t value for this problem is 2. D. The t value for this problem is 0.5. E. The degree of freedom for this problem is 1. Answer Key: 1. = A 2. = E. Period #2 includes prophase, prometaphase, anaphase and telophase; chromosomes are clearly visible during all those phases. 3. = B 4. = C 5. = B. one chromosome may be traced back to the mother and the other chromosome to the father. 6. = A. The chromosomes move toward opposite poles in anaphase. This phase is 2% (2/100) of the whole ten hour cycle. Two percent (0.02) of 10 hours is 0.2 hours. 7. = E 8. = D 9. = E 10.= E 11.= C 12.= B 13.= C


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