Mastering Biology with Pearson eText - Standalone Access Card - for Campbell Biology (11th Edition)
11th Edition
ISBN: 9780134446523
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 12, Problem 4TYU
The decline of MPF activity at the end of mitosis is due to
(A) the destruction of the protein kinase Cdk.
(B) decreased synthesis of Cdk.
(C) the degradation of cyclin.
(D) the accumulation of cyclin.
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In what sense are the two daughter cells produced by mitosis identical?
The decline of MPF activity at the end of mitosis is due to
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an increase in the cell's volume to genome ratio
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the destruction of the protein kinase Cdk
c.
decreased sythesis of cyclin
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The degradation of cyclin
A scientist studying a group of somatic cells notices that when the cell cycle is complete, half of the daughter cells have no chromosomes and the other half have 92 chromosomes. In what phase of mitosis did an error most likely occur? Explain.
Chapter 12 Solutions
Mastering Biology with Pearson eText - Standalone Access Card - for Campbell Biology (11th 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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- Name the four main stages of mitosis, and describe what happens in each stage.arrow_forwardDuring which phase of mitosis does the nuclear membrane beging to reform in the two daughter cells?arrow_forwardInvestigators found that cyclin B concentration rises and falls in synchrony with mitotic events and MPF activity. however, correlation is not causality. how would you show that cyclin B was responsible for these cell cycle events?arrow_forward
- During which phase of mitosis will the sister chromatids pull apart from one another to move to opposite sides of the cell?arrow_forwardEven though cytokinesis is included with Mitosis, we generally consider it to be its own phase. Why? by the time cytokinesis occurs, the cell has already split by the time cytokinesis occurs, the cytoplasm has already split by the time cytokinesis occurs, the nucleus has already split by the time cytokinesis occurs, the cell has copied all of its chromosomesarrow_forwardIn mitosis, is this telophase or metaphase? why?arrow_forward
- In the absence of cdc25 cells would not be able to undergo mitosis. True or False?arrow_forwardWhat effect does colchicine have on the percentage of cells in EACH of the stages of mitosis?arrow_forwardDefine mitosis and cytokinesis. What changes in cell structure would result if cytokinesis did not occur after mitosis?arrow_forward
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