Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Textbook Question
Chapter 12, Problem 1SYK
In the following photomicrograph of onion root tip cells, identify the cell cycle stage for the indicated cells.
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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.
Below is another image of dividing onion root cells undergoing mitosis.
In what phase of mitosis is cell B (outlined in black box)? How do you know? (1pt)
Below 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)
Chapter 12 Solutions
Study Guide for Campbell Biology
Ch. 12 - a. How many chromosomes are in your somatic cells?...Ch. 12 - a. What event is common to all three subphases of...Ch. 12 - The following diagrams will depict the five stages...Ch. 12 - a. What is MPF? b. Describe the relative...Ch. 12 - In the following photomicrograph of onion root tip...Ch. 12 - Describe one chromosome as it proceeds through an...Ch. 12 - Draw a sketch of one half of a mitotic spindle....Ch. 12 - FILL IN THE BLANK: Identify the appropriate phase...Ch. 12 - FILL IN THE BLANK: Identify the appropriate phase...Ch. 12 - Prob. 3TYKF
Ch. 12 - Prob. 4TYKFCh. 12 - Prob. 5TYKFCh. 12 - Prob. 6TYKFCh. 12 - FILL IN THE BLANK: Identify the appropriate phase...Ch. 12 - Prob. 8TYKFCh. 12 - Prob. 9TYKFCh. 12 - FILL IN THE BLANK: Identify the appropriate phase...Ch. 12 - One of the differences between prokaryotic binary...Ch. 12 - Prob. 2TYKCh. 12 - Prob. 3TYKCh. 12 - Prob. 4TYKCh. 12 - Prob. 5TYKCh. 12 - In eukaryotic organisms, chromosomes are...Ch. 12 - Prob. 7TYKCh. 12 - Prob. 8TYKCh. 12 - Prob. 9TYKCh. 12 - Prob. 10TYKCh. 12 - During cell division, cyclin combines with...Ch. 12 - Prob. 12TYKCh. 12 - Prob. 13TYKCh. 12 - Prob. 14TYKCh. 12 - Vinblastine is a chemotherapeutic drug used to...
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- Part A. Figure 1. Cells in various stages of mitotic division of an onion root tip.arrow_forwardPlease answer as comprehensive as possible.arrow_forwardUsing the data below for Allium cepa, express the total number of cells in mitosis as a percentage of the total number of cells in the field of view for Field 1. This is the mitotic index. Give your answer as a whole number (i.e. no decimals) and without any units. Total number of cells in Number of cells in: A.cepa root tip field of view M A Field 1 181 16 9 4 147 112 Field 2 12 7 6 Field 3 11 9arrow_forward
- Can you please help me fill in the chart on the time a onion root cell will spend in each phase?arrow_forwardIn order to investigate the cell cycle in HEK293 cells in culture, I ran a flow cytometry experiment. I labeled their nuclei with DAPI to analyze DNA content. In these flow cytometry plots below, label the two main phases of the cell cycle that you can see. Briefly, explain your answer.arrow_forwardLabel the arrows in the slide image below with the appropriate stage of the cell cycle.arrow_forward
- Consider the figure below showing how the concentration of four cyclins (comp A to comp D) vary throughout the cell cycle. Comp B Comp C Comp D Comp A G1 Phase S Phase G2 Phase Mitosis i) Why does the concentration of different cyclins vary throughout the cell cycle? ií) which of the four cyclins shown represents the G1 cyclin? What is the function of this cyclin? Concentrationarrow_forwardThis shows the concentrations of cyclings throughout the cell cycle. What is the role of cyclins in the cell cycle? Which of the four cyclins shown would represent the M cyclin? Provide a reason.arrow_forwardComplete the table please % of cells in each stage =number of cells in stage × 100 /total Number of cells countedarrow_forward
- Select the phase of the cell cycle depicted in the image below where spindle fibers align the chromosomes along the middle of the cell nucleus interphase prophase anaphase telophase metaphasearrow_forwardWhy is the onion root tip a good choice for viewing cells in different stages of the cell cycle?arrow_forwardEstimate the duration of each phase of mitosis, identify which of stage of mitosis is the longest. Kindly include references (very important).arrow_forward
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