CAMPBELL BIOLOGY IN FOCUS-MOD.MASTERING
3rd Edition
ISBN: 9780135191811
Author: Urry
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 9, Problem 9TYU
FOCUS ON EVOLUTION
The result of mitosis is that the daughter cells end up with the same number of chromosomes that the parent cell had. Another 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
describe what would occur if cells were in mitosis more than they were in interphase?
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?
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?
Chapter 9 Solutions
CAMPBELL BIOLOGY IN FOCUS-MOD.MASTERING
Ch. 9.1 - How many chromosomes are drawn in each part of...Ch. 9.1 - WHAT IF? A chicken has 78 chromosomes in its...Ch. 9.2 - How many chromosomes are shown in the drawing in...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. 4CC
Ch. 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 - Cell A has half as much DNA as cells B, C, and...Ch. 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 - FOCUS ON INFORMATION The continuity of life is...Ch. 9 - SYNTHESIZE YOUR KNOWLEDGE Shown here are two He La...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Some species of bacteria that live at the surface of sediment on the bottom of lakes are capable of using eithe...
Biology: Life on Earth with Physiology (11th Edition)
Describe the evolution of mammals, tracing their synapsid lineage from early amniote ancestors to true mammals....
Loose Leaf For Integrated Principles Of Zoology
Why is it necessary to be in a pressurized cabin when flying at 30,000 feet?
Anatomy & Physiology (6th Edition)
How does trandlation differ from transcription?
Microbiology: Principles and Explorations
2. Why is it that the range of resting blood pressures of humans is best represented by a bell-shaped curve co...
Human Biology: Concepts and Current Issues
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_forwardIn the cell cycle, at which stages do two chromatids make up one chromosome? a. beginning of mitosis b. end of G1 c. beginning of S d. end of mitosis e. beginning of G2arrow_forwardAfter mitosis, each daughter cell contains genetic instructions that are ______ and _____ chromosome number of the parent cell. a. identical to the parent cells; the same b. identical to the parent cells; one-half the c. rearranged; the same d. rearranged; one-half thearrow_forward
- Chromosomes are duplicated during what portion of the cell cycle? a. G 1 phase b. S phase c. prophase d. prometaphasearrow_forwardDNA 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_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
- Which 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_forwardThe 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.arrow_forwardThe diagram shows a cell that has completed mitosis and cytokinesis. Which stage of the cell cycle will both daughter cells now enter? O Meiosis Interphase O Cytokinesis The cell does not enter into a new cell cyclearrow_forward
- What is the specific structure of DNA during both the prophase and metaphase stages of mitosis?1.Condensed chromosomes2.Unreplicated chromosomes3.Single chromatid4.Separated chromatidsarrow_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_forwardFigure 6.4 Which of the following is the correct order of events in mitosis?a. Sister chromatids line up at the metaphase plate. The kinetochore becomes attached to the mitotic spindle. The nucleus re-forms and the cell divides. The sister chromatids separate.b. The kinetochore becomes attached to the mitotic spindle. The sister chromatids separate. Sister chromatids line up at the metaphase plate. The nucleus re-forms and the cell divides.c. The kinetochore becomes attached to metaphase plate. Sister chromatids line up at the metaphase plate. The kinetochore breaks down and the sister chromatids separate. The nucleus re-forms and the cell divides.d. The kinetochore becomes attached to the mitotic spindle. Sister chromatids line up at the metaphase plate. The kinetochore breaks apart and the sister chromatids separate. The nucleus re-forms and the cell divides.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning
Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning
Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
Anatomy & PhysiologyBiologyISBN:9781938168130Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark WomblePublisher:OpenStax College
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Anatomy & Physiology
Biology
ISBN:9781938168130
Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
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