CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
10th Edition
ISBN: 9780136538820
Author: Taylor
Publisher: INTER PEAR
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Chapter 8, Problem 12TYK
In the light micrograph below of dividing cells near the tip of an onion root, identify a cell in interphase, prophase, 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:
Interphase- 150
Prophase- 20
Prometaphase- 11
Metaphase- 6
Anaphase- 5
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.
Referring 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 graded
Please identify the G2 phase, prophase, prometaphase, metaphase, anaphase, and telophase of the onion root tip cells. Images included. Thank you! :)
Chapter 8 Solutions
CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
Ch. 8 - Complete the following table to compare mitosis...Ch. 8 - If an intestinal cell in a grasshopper contains 24...Ch. 8 - Which of the following is not a function of...Ch. 8 - It is difficult to observe individual chromosomes...Ch. 8 - A fruit fly somatic cell contains 8 chromosomes....Ch. 8 - If a fragment of a chromosome breaks off and then...Ch. 8 - Which of the following phases of mitosis is...Ch. 8 - A biochemist measured the amount of DNA in cells...Ch. 8 - A micrograph of a dividing cell from a mouse...Ch. 8 - Cytochalasin B is a chemical that disrupts...
Ch. 8 - Why are individuals with an extra chromosome 21,...Ch. 8 - In the light micrograph below of dividing cells...Ch. 8 - An organism called a plasmodial slime mold is one...Ch. 8 - Prob. 14TYKCh. 8 - Discuss the factors that control the division of...Ch. 8 - Compare cytokinesis in plant and animal cells. In...Ch. 8 - Sketch a cell with three pairs of chromosomes...Ch. 8 - Suppose you read in the newspaper that a genetic...Ch. 8 - Bacteria are able to divide on a faster schedule...Ch. 8 - Prob. 20TYKCh. 8 - A mule is the offspring of a horse and a donkey. A...Ch. 8 - What you think of as a banana is a Cavendish, one...Ch. 8 - SCIENTIFIC THINKING The study described in Module...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- 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. A - Cell 2 is undergoing anaphase to separate the duplicated chromosomes to opposite poles of the cell. B - Cell 1 lacks chromosomes and cannot contribute genetic material to future cells. C - Cells 4 and 5 have recently divided and are now haploid, containing half of a full set of chromosomes after division. D - Cells 4 and 5 have recently divided and have a cell plate that formed between them. E - Cell 3 is providing a mechanism for increasing genetic diversity in the daughter cells.arrow_forwardOnce somatic cell nuclear transfer has been successfully completed, the resulting cell will be: haploid diploid O triploid not enough information to tellarrow_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
- Referring 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 phaseB) S phase and M phaseC) G1 phase and M phaseD) G2 phase and M phasearrow_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_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
- 8) There is a photo below, where you can see dividing cells near the tip of an onion root under the light microscope, identify a cell in each of the following stages by circling: Metaphase, Anaphase, and Cytokinesis.arrow_forwardProgression of cells through the division cycle is regulated by both extracellular (environmental) and internal signals that monitor and coordinate processes during phases of cycle. a) True b) Falsearrow_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_forward
- 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_forwardName the phases of the cell cycle. b) During which phases are the chromosomes and then the cytoplasm split, respectively? c) Describe one mechanism that is used to regulate the cell cycle.arrow_forwardA student collected samples of cells from a woody plant during the spring and produced the drawings below. Sample 1 was collected from the woody stem of the plant. Sample 2 was collected from the root tip of the plant. Cells in different steps of mitosis are labeled with letters A, B, C, D, and E in Sample A) Describe the role of mitosis in the growth of a plant. B) Explain why there are more cells observed in mitosis in the root tip than in the woody stem.arrow_forward
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