Campbell Biology, Volume 1 - With Access (Custom)
2nd Edition
ISBN: 9781323170106
Author: Reece
Publisher: PEARSON
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Textbook Question
Chapter 12, Problem 12.3CR
Explain the significance of the G1, G2, and M Checkpoints and the go-ahead signals involved in the cell cycle control system.
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Chapter 12 Solutions
Campbell Biology, Volume 1 - With Access (Custom)
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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- Explain and give the importance of cell cycle checkpoints in the different phase of the cell cycle.arrow_forwardBriefly explain what occurs in G1 phase including how and why this phase is important in the cell cycle.arrow_forwardExplain the importance of the checkpoints in the cell cycle and the consequences of bypassing those checkpoints.arrow_forward
- Explain how cyclin and cyclin-dependent kinases control the cell cycle.arrow_forwardWhat are the most important steps in cell-cycle regulation? Give some explanations and present some factors leading to uncontrolled cell cycle.arrow_forwardDescribe the three most important cell cycle checkpoints. Explain in a detailed manner and provide some sample scenarios.arrow_forward
- Review Figure 12.16 on cell cycle control. Would you expect MPF (maturation-promoting factor) activity to remain steady during cleavage? Explain.arrow_forwardDescribe the general conditions that must be met at each of the three main cell-cycle checkpoints.arrow_forwardIn cell cycle, under the control system, explain in details (including roles of related proteins): a) How mitogens trigger transcription of genes for entry into S phase. b) During M phase, how M-Cdk can trigger cohesin dissociation as well as Mad2 triggers mitotic checkpoint to delay metaphase to anaphase transition.arrow_forward
- Name at least one type of external stimulus that promotes re-entry of the cell cycle from G0 to G1 and signals to pass through the G1/S checkpoint.arrow_forwardLeland Hartwell, the third recipient of the 2001 Nobel Prize in Physiology or Medicine, was acknowledged for his characterization of cell cycle checkpoint pathways in the budding yeast S. cerevisiae. What is a cell cycle check-point pathway?arrow_forwardFill in the blanks with the appropriate word/ phrase that correspond to each cell cycle check point.arrow_forward
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cell division of meiosis and mitosis; Author: Stated Clearly;https://www.youtube.com/watch?v=A-mFPZLLbHI;License: Standard youtube license