Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
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 9, Problem 7TYU
The light micrograph shows dividing cells near the tip of an onion root. Identify a cell in each of the following stages: prophase, prometaphase, metaphase, anaphase, and telophase. Describe the major events occurring at each stage.
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A section of elodea leaf is stained and examined under a microscope. The total number of cells in each stage of the cell cycle is as follows:
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Prophase- 20
Prometaphase- 11
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Telophase- 1
If the complete cell cycle in an elodea leaf is 24 hrs. What is the average duration of metaphase in the cycle. Assume no cells are in G0.
The image shows a section of a root tip of Broad Bean with cells from the region of cell division, just behind the root cap. Five cells have been numbered (1-5). Which statements accurately describe the mechanism by which the cells ensure that chromosomes are passed successfully to the next generation? Select ALL that apply.
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E - Cell 3 is providing a mechanism for increasing genetic diversity in the daughter cells.
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chromosomes at anaphase
chromatids at metaphase 1
chromosomes at telophase after cytokinesis
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Chapter 9 Solutions
Campbell Biology in Focus (2nd Edition)
Ch. 9.1 - WHAT IF? A chicken has 78 chromosomes in its...Ch. 9.2 - Compare cytokinesis in animal cells and plant...Ch. 9.2 - Prob. 3CCCh. 9.2 - Compare the roles of tubulin and actin during...Ch. 9.3 - Prob. 1CCCh. 9.3 - Prob. 2CCCh. 9.3 - Compare and contrast a benign tumor and a...Ch. 9.3 - Prob. 4CCCh. 9 - Through a microscope, you can see a cell plate...Ch. 9 - In the cells of some organisms, mitosis occurs...
Ch. 9 - Which of the following does not occur during...Ch. 9 - Prob. 4TYUCh. 9 - The drug cytochalasin B blocks the function of...Ch. 9 - DRAW IT Draw one eukaryotic chromosome as it would...Ch. 9 - The light micrograph shows dividing cells near the...Ch. 9 - SCIENTIFIC INQUIRY Although both ends of a...Ch. 9 - FOCUS ON EVOLUTION The result of mitosis is that...Ch. 9 - SYNTHESIZE YOUR KNOWLEDGE Shown here are two He La...Ch. 9 - FOCUS ON INFORMATION The continuity of life is...
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- Imagine a nucleus that has 10 chromosomes. How many chromosomes does it have before prophase begins? How many chromosomes does each daughter nucleus have after telophase has been completed? How many chromatids are present in the one mother nucleus before prophase begins? How many chromatids are present in each daughter nucleus after telophase has been completed? How many chromatids are present if you add together all chromatids in both daughter nuclei after telophase has been completed?arrow_forwardOnce somatic cell nuclear transfer has been successfully completed, the resulting cell will be: haploid diploid O triploid not enough information to tellarrow_forwardReferring to the graph, what phases together would account for approximately 25% of the time spent from a cell in the cell cycle? A) M phase and S phase B) S phase and M phase C) G1 phase and M phase D) G2 phase and M phase not gradedarrow_forward
- The following diagram is meant to help you understand how the amount of DNA in a cell changes as the cell cycle progresses. On the diagram, identify two of the stages of the cell cycle being described and identify how much DNA exists per cell, where a cell is defined as a distinct nucleus. Note that the sequence of images highlights one of the chromosomes of the cell. The other chromosomes, while also present, are faded in the background. Stage in Cell Cycle: A Status of Chromosomes: (Only one of the chromosomes is intensely colored) NANA INNNNNNN wwwww wwwNYA wwwww WXXXX VANNNNNN www Amount of DNA Per Cell: C NNNNA NNNNNN WWXXXXX NNNNNNE WNNNN www B NNNNN Between 1X and 2X 2X D 1Xarrow_forwardBelow is an image of a dividing onion root tip cell undergoing mitosis. In what phase of mitosis is cell A (outlined in black box)? How do you know? (1pt)arrow_forwardA student examines a thin section of an onion-root tip and records the number of cells that are in each stage of the cell cycle. She observes 94 cells in interphase, 14 cells in prophase, 3 cells in prometaphase, 3 cells in metaphase, 5 cells in anaphase, and 1 cell in telophase. If the complete cell cycle in an onion-root tip requires 22 hours, what is the average duration of each stage in the cycle? Assume that all cells are in the active cell cycle (not G0).arrow_forward
- What is the difference between a chromosomes and a chromatids? a) there is no difference they are the same b) chromatids is always one stand of dna chromosomes can be one or two strand depending on the phase of the cell cycle c) chromatids is always two strands of dna chromosomes can be one or two stands depending on the phase of the cell cycle d) chromosomes are homologous chromatids are identicalarrow_forward1) Examine the picture of an onion root tip with cells in various stages of the cell cycle. A student claims that interphase is the longest stage of the cell cycle. Another student claims that mitosis is the longest stage. Using evidence from the photo, determine which student is correct and why. A) Mitosis is the longest stage because anaphase requires more time to separate chromatids. B) Interphase is the longest stage because chromosomes are visible in the majority of the cells. C) Mitosis is the longest stage because the majority of the cells in the photo are replicating their DNA. D) Interphase is the longest stage because the majority of the cells in the photo have uncondensed chromatin and are not dividing. Not Gradedarrow_forwardDraw and label a picture of what a cell looks like during prophase. Draw and label a picture of what a cell looks like during metaphase. Draw and label a picture of what a cell looks like during anaphase. Draw and label a picture of what a cell looks like during telophase. Draw a picture of what a cell looks like during cytokinesis. Draw and label a picture of prophase I & II. Draw and label a picture of metaphase I & II.arrow_forward
- What is the correct order for the following events according to the cell cycle stages? (chromosomes align up in midplane of the cell, sister chromatids begin to move toward the poles, cytoplasm divides) * telophase, cytokinesis, anaphase metaphase, telophase, cytokinesis O metaphase, anaphase, cytokinesis prophase, anaphase, metaphase anaphase, prophase, telophase OOOOarrow_forwardDraw a diagram of the cell cycle and label the phases. On your diagram: a) For each phase, indicate whether the chromosomes are condensed or not. b) Indicate the phase(s) when it is possible to do a karyotype c) Indicate the phase-transition(s) where the cell would arrest if you add hydroxyurea.arrow_forwardThe cell cycle control system is a cycling set of molecules in the cell that triggers and coordinates key events in the cell cycle. This is all controlled by growth factors. a) Identify the major checkpoints in a cell and its function. b)Explain the role of the growth factor.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