Multiple Choice Identify the letter of the choice that best completes the statement or answers the question.

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1 Biology Mo Test: Q3 Mr. Rellinger Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. Which event occurs during interphase? The cell carries out metabolic growth processes. c. Spindle fibers begin to form. Centromeres divide. 2. During which phase of mitosis do the chromosomes line up along the middle of the dividing cell? telophase c. metaphase anaphase 3. What is a malignant tumor? a mass of cancer cells c. the rapidly dividing cells found at the site of a wound an abnormal mass of essentially normal cells 4. The process of the cell cycle in which a cell divides into two daughter cells is called mitotic phase. metaphase. c. mitosis. 5. The cell cycle is the series of events that cells go through from birth to reproduction. period of time between the birth and the death of a cell. c. time from prophase until cytokinesis. 6. Cancer is a disease in which some cells lose the ability to control their size. spindle fibers. c. rate of division.

2 Figure The region labeled B in Figure 9-1 is called the centriole. c. sister chromatids. spindle microtubules. 8. During which phase(s) of mitosis are structures like the one shown in Figure 9-1 visible? anaphase and prophase prophase and metaphase c. anaphase and interphase 9. Which of the following is a correct statement about the events of the cell cycle? Little happens during the G 1 and G 2 phases. c. The Mitotic phase is usually the longest phase. Interphase consists of the G 1, S, and, G 2 phases. 10. Unlike mitosis, meiosis results in the formation of diploid cells. haploid cells. c. 2n daughter cells. 11. Crossing-over rarely occurs in mitosis, unlike meiosis. Which of the following is the likely reason? Tetrads rarely form during mitosis. c. A cell undergoing meiosis does not have homologous chromosomes. There is no prophase during mitosis. 12. Which of the following is NOT a correct statement about the events of the cell cycle? Interphase is usually the longest phase. c. Cell division ends with cytokinesis. The cell grows during the Mitotic phase.

3 13. Which of the following is a phase in the cell cycle? G 1 phase c. Mitotic phase all of the above 14. The mitosis is series of events that cells go through from birth to reproduction. c. time from prophase until cytokinesis of the cell. time from prophase to telophase of the nucleus. 15. The two main processes of the mitotic phase are called mitosis and interphase. telophase and cytokinesis. c. mitosis and cytokinesis. 16. Which of the following is a phase of mitosis? interphase c. prophase S phase 17. Unlike mitosis, the end of meiosis usually results in the formation of four genetically unique cells. c. four genetically identical cells. two genetically unique cells. 18. What is shown in Figure 9-2? independent assortment c. crossing over replication Figure 9-2

4 USING SCIENCE SKILLS Figure Observing: List the correct order for the diagrams of the mitosis process in Figure 9-4. A, B, C, D D, C, B, A c. D, A, C, B 20. Inferring: What is the chromosome (diploid) number of the cell shown in Figure 9-4? 4 c Inferring: Identify the structure labeled Y in Figure 9-4. centrosome c. spindle microtubule sister chromatids 22. Observing: What phase is shown in diagram C of Figure 9-4? prophase c. anaphase telophase

5 Figure Interpreting Graphics: In Figure 9-6, what is the structure labeled X in phase A? Chromatin Tetrad Sister chromatids 24. Observing: In Figure 9-6, during which phase would crossing-over and genetic recombination occur? D A c. G 25. Identifying: In Figure 9-6, identify the phase of meiosis for letter F. Anaphase I Telophase/Cytokinesis II Anaphase II

6 Interpreting Graphics: Use the meiosis diagrams below to identify the most appropriate answers. 26. Identify the process: Prophase I Prophase II c. Metaphase I 27. Identify the genetic material: Sister-chromatids c. Chromosomes Tetrads of homologous chromosomes 28. Identify the amount of genetic material: Extra Credit n 2n c. 2 x 2n 29. Identify the process: Anaphase I c. Telophase/Cytokinesis I Telophase/Cytokinesis II 30. Identify the genetic material: Chromatin c. Homologous chromosomes Tetrads of homologous chromosomes 31. Identify the amount of genetic material in each developing new cell: Extra Credit 2n c. 2 x 2n 4 x 2n

7 32. Identify the process: Telophase/Cytokinesis I Anaphase II c. Telophase/Cytokinesis II 33. Identify the genetic material: Sister-chromatids c. Chromosomes Tetrads of homologous chromosomes 34. Identify the amount of genetic material: Extra Credit n 2n c. 4 x 2n

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