Modified Mastering Biology with Pearson eText -- Standalone Access Card -- for Campbell Biology (10th Edition)
10th Edition
ISBN: 9780321939050
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Publisher: PEARSON
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Textbook Question
Chapter 12.3, Problem 2CC
How does MPF allow a cell to pass the G2 phase Checkpoint and enter mitosis? (See Figure 12.16.)
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How does MPF allow a cell to pass the G2 phase checkpointand enter mitosis? (See Figure 12.16.)
What effect does colchicine have on the percentage of cells in EACH of the stages of mitosis?
What processes occur in the interphase cell before the onset of mitosis? Why is it incorrect to say that these cells are resting?
Chapter 12 Solutions
Modified Mastering Biology with Pearson eText -- Standalone Access Card -- for Campbell Biology (10th Edition)
Ch. 12.1 - How many chromosomes are drawn in each part of...Ch. 12.1 - WHAT IF? A chicken has 78 chromosomes in its...Ch. 12.2 - How many chromosomes are shown in the illustration...Ch. 12.2 - Compare cytokinesis in animal cells and plant...Ch. 12.2 - During which stages of the cell cycle does a...Ch. 12.2 - Compare the roles of tubulin and actin during...Ch. 12.2 - A kinetochore has been compared to a coupling...Ch. 12.2 - MAKE CONNECTIONS What other functions do actin...Ch. 12.3 - In Figure 12.14, why do the nuclei resulting from...Ch. 12.3 - How does MPF allow a cell to pass the G2 phase...
Ch. 12.3 - MAKE CONNECTIONS Explain how receptor tyrosine...Ch. 12 - Differentiate between these terms: chromosome,...Ch. 12 - In which of the three phases of interphase and the...Ch. 12 - Explain the significance of the G1, G2, and M...Ch. 12 - Through a microscope, you can see a cell plate...Ch. 12 - Vinblastine is a standard chemotherapeutic drug...Ch. 12 - One difference between cancer cells and normal...Ch. 12 - The decline of MPF activity at the end of mitosis...Ch. 12 - In the cells of some organisms, mitosis occurs...Ch. 12 - Which of the following does not occur during...Ch. 12 - Cell A has half as much DNA as cells B, C, and D...Ch. 12 - The drug cytochalasin B blocks the function of...Ch. 12 - VISUAL SKILLS The light micrograph shows dividing...Ch. 12 - DRAW IT Draw one eukaryotic chromosome as it would...Ch. 12 - EVOLUTION CONNECTION The result of mitosis is that...Ch. 12 - SCIENTIFIC INQUIRY Although both ends of a...Ch. 12 - WRITE ABOUT A THEME: INFORMATION The continuity of...Ch. 12 - SYNTHESIZE YOUR KNOWLEDGE For selected answers,...
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- What experimental evidence indicates that cyclin B is re-quired for a cell to enter mitosis? What evidence indicates that cyclin B must be destroyed for a cell to exit mitosis?arrow_forwardWhat evidence indicates that cyclin B must be destroyed for a cell to exit mitosis?arrow_forwardList in each blank the description of events associated with each stage of mitosis in addition to the preparatory stage Interphase. Some events and structures occur only in plant cells and some in animal cells. Mark these events in the list with an asterisk.arrow_forward
- List the stages of mitosis in order of occurrence. Describe aunique activity associated with each stagearrow_forwardDescribe the structure and function of the mitotic spindlearrow_forwardA hypothetical poison prevents transcription factors from binding to the gene for tubulin proteins. What impact would this have on mitosis, and why?arrow_forward
- If cells in the process of dividing are subjected to colchicine, a drug that interferes with the functioning of the spindle apparatus, at which stage will mitosis be arrested?arrow_forwardIn the following study, the investigators wanted to determine the role of cyclin B in controlling the cell cycle. Earlier researchers had found that extracts made from frog eggs (Xenopus) contained all the necessary proteins and machinery required for DNA replication. This included proteins that regulated the mitosis promoting factor (MPF). At the time of this study, cyclin B was show to affect MPF activity and the research group wanted to test using Xenopus egg extract in an assay. In Figure 1 (a) MPF activity was tested for its ability to phosphorylate Histone (H1) in sperm chromatin over a certain period of time. Additionally, the cyclin B concentration in the extract was measured. In figure 1b, the extract was tested after treatment with RNase which degraded only the mRNA and not RNA or FRNA in the extract. Knowing that cyclin B is a short-lived protein, why do you suppose the graph shows the results you see in figure 1b?arrow_forwardDuring which phase of mitosis will the sister chromatids pull apart from one another to move to opposite sides of the cell?arrow_forward
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