CAMPBELL BIOLOGY MOD MASTERING (18 WEEK)
12th Edition
ISBN: 9780136920335
Author: Urry
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 12, Problem 11TYU
EVOLUTION CONNECTION The result of mitosis is that the daughter cells end up with the same number of chromosomes that the parent cell had. Another potential way to maintain the number of chromosomes would be to carry out cell division first and then duplicate the chromosomes in each daughter cell. Assess whether this would be an equally good way of organizing the cell cycle. Explain why evolution has not led to this alternative.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Biology
Name:
Date:
Period:
Mitosis Worksheet
The diagram below shows six cells in various phases of the cell cycle. Note the cells are not arranged in the
order in which mitosis occurs and one of the phases of mitosis occurs twice. Use the diagram to answer
questions 1-7.
Phases of the Cell Cycle
1)
Cells A and F show an early and a late stage of the same phase of mitosis. What phase is it?
2)
Which cell is in metaphase?
3)
Which cell is in the first phase of mitosis?
4)
In cell A, what structure is labeled X?
5)
Which cell is in the "in between" phase of mitosis?
6)
Place the diagrams in order from first to last.
7)
Are the cells depicted plant or animal cells? Explain your answer.
8)
What is the longest phase of the cell cycle?
9)
Why is mitosis important?
The image below is of a stained onion root tip. Determine the phase of mitosis that each cell below is in, and record that below.
Look closely - cells that are clearly stained are numbered in the image below. Use those numbers when assigning the phase of mitosis for each cell.
Using the same onion root tip image and data from the question above, which phase are the majority of cells in? Make a conclusion about what this means about the length of each phase of the cell cycle.
Give handwritten answer
Chapter 12 Solutions
CAMPBELL BIOLOGY MOD MASTERING (18 WEEK)
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,...
Additional Science Textbook Solutions
Find more solutions based on key concepts
True or false? Some trails are considered vestigial because they existed long ago.
Biological Science (6th Edition)
Determine [OH], [H+], and the pH of each of the following solutions. a. 1.0 M KCl b. 1.0 M KC2H3O2
Chemistry
Identify me theme or themes exemplified by (a) the sharp quills of a porcupine (b) the development of a multice...
Campbell Biology in Focus (2nd Edition)
Single penny tossed 20 times and counting heads and tails: Probability (prediction): _______/20 heads ________/...
Laboratory Manual For Human Anatomy & Physiology
The method to determine the volume of a powered solid, liquid and a rock needs to be determined. Concept introd...
Living By Chemistry: First Edition Textbook
Knowledge Booster
Learn more about
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 individual chromosomes become visible with a light microscope during which stage of mitosis? a. prophase b. prometaphase c. metaphase d. anaphasearrow_forwardSeparation of the sister chromatids is a characteristic of which stage of mitosis? a. prometaphase b. metaphase c. anaphase d. telophasearrow_forwardWhich statement is true regarding mitosis?1.During prophase, the chromosomes become uncondensed and two new nuclei are formed.2.During telophase, the chromosomes align in the center of the cell.3.During metaphase, the chromosomes condense4.During anaphase, the chromatids separate and move to opposite poles.arrow_forward
- Homologous pairs of chromosomes line up at the equator during which phase of mitosis? 1. anaphase 2. this doesn't happen in mitosis 3. metaphase 2 4. metaphase 1arrow_forwardIn mitosis, chromosomes separate by which specific mechanism? A. chromosomes sprout flagella and begin to swim towards the ends of the cell B. molecular motors in the kinetochore move the chromosome toward the centrioles C. centrioles attract the chromosomes by electromagnetic attraction D. centrioles begin to shorten microtubules by degrading themarrow_forwardIn the mitosis experiment, in what stage were most of the onion root tip cells in? Based on what you know about cell cycle division, what does this imply about the life span of a cell? Were there any stages of the cell cycle that you did not observe? How can you explain this using evidence from the cell cycle?arrow_forward
- Review the stages of the eukaryotic cell cycle. Suppose a 2N= 4 cell goes through interphase. What are the number and structure of the chromosomes during: G1 phase? S phase? G2 phase? If an N= 3 cell undergoes mitosis, what will be the number and structure of the chromosomes the start of mitosis? What will the number and structure of the chromosomes be at the end of mitosis and cytokinesis?arrow_forwarddraw inarrow_forwardSpeculate about the following details of mitosis. 1. Why do chromosomes need to condense during mitosis? 2. Why does the nuclear membrane need to break down at the beginning of prometaphase? 3. Why do chromosomes congress (migrate) toward the metaphase plate during metaphase, and what forces keep the chromosomes there until anaphase begins? 4. What would happen if one kinetochore of one chromosome failed to attach to the spindle and the cell entered anaphase? In a general sense, how do cells normally prevent this situation? 5. During late anaphase and telophase, animal cells elongate to aid the eventual separation of the two daughter cells in cytokinesis. This elongation can occur even in cell suspensions, where different cells do not come into contact. Are the forces that elongate the cell likely to be pushing forces or pulling forces, and where do these forces come from?arrow_forward
- DNA molecules are repeated during which step of the cell cycle? Explain how chromosomes' kinetochores function. The California two-spot octopus (Octopus bimaculoides) has 28 chromosomes in a diploid cell. Mitosis occurs in the cell. In each daughter cell, how many chromosomes do you have?arrow_forwardDraw a well labelled diagram to show the anaphase stage of mitosis in a plant cell having four chromosomes.arrow_forwardWhat is true of mitosis?1. A cell undergoes two cell divisions.2 .The daughter cells produced are gametes.3.Hofblogous chromosomes are separated to produce four haploid daughter cells.4. Sister chromatids separate to produce two diploid daughter dells.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
The Cell Cycle and its Regulation; Author: Professor Dave Explains;https://www.youtube.com/watch?v=eqJqhA8HSJ0;License: Standard YouTube License, CC-BY
Cell Division - Mitosis and Meiosis - GCSE Biology (9-1); Author: Mr Exham Biology;https://www.youtube.com/watch?v=w7vp_uRA8kw;License: Standard YouTube License, CC-BY