Tag: Biology

  • [Solved] Pseudoscience: Earwax Candle treatment

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    Base powerpoint off the provided attachment Provide a power point presentation that includes all the information your found (see above outline) *Must have a Title Page to include: Name, Title, and Course Name * Graphics are good!! *Reference page: references must be in APA format * Email your pr…

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    Base powerpoint off the provided attachment Provide a power point presentation that includes all the information your found (see above outline) *Must have a Title Page to include: Name, Title, and Course Name * Graphics are good!! *Reference page: references must be in APA format * Email your presentation to Professor Frazier before the start of class on the date of Presentations Resources APA Format: https://owl.english.purdue.edu/owl/
    \
    Background.docx](https://www.sweetstudy.com/files/background-docx-10315833 "Background.docx")

  • [Solved] discussions

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  • [Solved] Anatomy and Physiology

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  • [Solved] bel hav u6

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    attached – ## Unit6_WritingAssignment.pdf **## Unit6_WritingAssignment.pdf** Unit 6: Writing Assignment Due Saturday by 11:59pm Points 30 Submitting a file upload Unit 6 Writing Assignment Rubric Start Assignment Writing Assignment: Submit by Saturday 11:59 p.m. Prompt: Recall the implications fro…

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    attached

    – ## Unit6_WritingAssignment.pdf

    **## Unit6_WritingAssignment.pdf**

    Unit 6: Writing Assignment

    Due Saturday by 11:59pm
    Points 30
    Submitting a file upload

    Unit 6 Writing Assignment Rubric

    Start Assignment

    Writing Assignment: Submit by Saturday 11:59 p.m.

    Prompt: Recall the implications from this week’s focus chapter on NAEP reading proficiency.
    Write a paper addressing each of the following questions.

    What are the NAEP expectations for describing reading proficiency?
    Which of these expectations are sensible, and which need to be adjusted?
    What do you think of the challenges NAEP expectations present to students?
    Are these challenges reasonable?
    How far beyond NAEP-type expectations should instruction go?
    How can educators help improve reading proficiency?

    Requirements: This paper should be 250-500 words in the main body and contain in-text citations
    (you can use the textbook as a source), correctly formatted in APA. Adhere to Belhaven’s APA-
    compliant formatting, including a title and reference page.

    6/10/25, 12:02 AM Unit 6: Writing Assignment

    https://belhaven.instructure.com/courses/46283/assignments/875160 1/4

    Criteria Ratings Pts

    Organization &
    Content
    (InTASC 4,7)

    20 pts

     InTASC #4 –
    Content
    Knowledge

    The teacher
    understands the
    central
    concepts, tools
    of inquiry, and
    structures of the
    discipline(s) he
    or she teaches
    and creates
    learning
    experiences
    that make these
    aspects of the
    discipline
    accessible and
    meaningful for
    learners.
    threshold: 3.0 pts

    —

     InTASC #7B-
    1 – Planning for
    Instruction

    —

    20 pts
    Advanced – 4

    Assignment is
    organized in a
    clear and logical
    manner. All
    components of the
    assignment are
    included and are
    supported with
    solid research and
    sound educational
    practices. (20 pts)

    17 pts
    Proficient – 3

    Assignment has
    clear organization.
    Most of the
    components of the
    assignment are
    included and are
    supported by
    some research
    and sound
    educational
    practices. (17 pts)

    14 pts
    Basic -3

    Assignment’ s
    organization is not
    cohesive. Several
    components of the
    assignment are
    missing and there
    is little evidence of
    research and
    sound educational
    practices. (14 pts)

    11 pts
    Minimal – 1

    Assignment lacks
    organization and
    cohesion. The
    assignment does
    not address the
    stated
    components or
    use solid research
    or sound
    educational
    practices. (11 pts)

    4 pts
    Advanced – The
    candidate’s
    performance is
    exemplary and
    consistently
    exceeds
    expectations.
    Indications of a
    high level of
    critical and
    reflective
    thinking, with a
    depth of
    understanding a
    core knowledge
    base, as well as
    demonstrates
    academic and
    professional
    skills.

    3 pts
    Proficient – The
    candidate’s
    performance
    consistently
    meets
    expectations.
    The candidate
    effectively
    demonstrations
    the requirements
    with expected
    professional
    performance
    indicating an
    understanding of
    a core
    knowledge base
    with the
    application of
    critical thinking,
    academic, and
    professional
    skills.

    2 pts
    Basic – The
    candidate’s
    performance
    sometimes
    meets
    expectations but
    is not doing so
    consistently.
    Candidate
    demonstrates
    little depth of
    knowledge base
    understanding
    and little
    evidence of
    critical and/or
    reflective
    thinking

    1 pts
    Minimal – The
    candidate’s
    performance
    demonstrates
    mediocre work,
    very little effort
    or demonstration
    of responses to
    requirements.
    The candidate
    demonstrates
    little to no
    understanding of
    a core
    knowledge base
    with little to no
    critical/reflective
    thinking,
    academic or
    professional
    skills.

    4 pts
    Advanced – The
    candidate’s
    performance is

    3 pts
    Proficient – The
    candidate’s
    performance

    2 pts
    Basic – The
    candidate’s
    performance

    1 pts
    Minimal – The
    candidate’s
    performance

    6/10/25, 12:02 AM Unit 6: Writing Assignment

    https://belhaven.instructure.com/courses/46283/assignments/875160 2/4

    Criteria Ratings Pts

    (updated)

    The teacher
    draws upon
    knowledge of
    content areas,
    cross-
    disciplinary
    skills, learners,
    the community,
    and pedagogy
    to plan
    instruction that
    supports every
    student in
    meeting
    rigorous
    learning goals.
    (The teacher is
    able to plan
    instruction
    based upon
    knowledge of
    subject matter,
    students, the
    community, and
    curriculum
    goals.)
    threshold: 3.0 pts

    APA -compliant
    formatting

    5 pts

    exemplary and
    consistently
    exceeds
    expectations.
    Indications of a
    high level of
    critical and
    reflective
    thinking, with a
    depth of
    understanding a
    core knowledge
    base, as well as
    demonstrates
    academic and
    professional
    skills.

    consistently
    meets
    expectations.
    The candidate
    effectively
    demonstrations
    the requirements
    with expected
    professional
    performance
    indicating an
    understanding of
    a core
    knowledge base
    with the
    application of
    critical thinking,
    academic, and
    professional
    skills.

    sometimes
    meets
    expectations but
    is not doing so
    consistently.
    Candidate
    demonstrates
    little depth of
    knowledge base
    understanding
    and little
    evidence of
    critical and/or
    reflective
    thinking.

    demonstrates
    mediocre work,
    very little effort
    or demonstration
    of responses to
    requirements.
    The candidate
    demonstrates
    little to no
    understanding of
    a core
    knowledge base
    with little to no
    critical/reflective
    thinking,
    academic or
    professional
    skills.

    5 pts
    Advanced – 4
    Consistently
    follows APA
    format, including
    title page,
    citations, and
    References page
    when required.
    (NO errors) (5 pts)

    4 pts
    Proficient – 3
    Consistently
    follows APA
    format, including
    title page,
    citations, and
    References page
    when required. (1-

    3 pts
    Basic -3
    Limited (3-5)
    errors in APA
    format including
    title page,
    citations, and
    References page
    when required (3
    pts)

    2 pts
    Minimal – 1
    More than 5 APA
    errors in format,
    including title
    page, citations, or
    References page
    when required. (2
    pts)

    6/10/25, 12:02 AM Unit 6: Writing Assignment

    https://belhaven.instructure.com/courses/46283/assignments/875160 3/4

    Criteria Ratings Pts

    Mechanics

    5 pts

    Total Points: 30

    2 MINOR errors).
    (4 pts)5 pts

    Advanced – 4
    The presentation
    demonstrates
    exceptional use of
    standard English
    conventions
    (mechanics,
    usage, grammar
    and syntax). NO
    ERRORS. (5 pts)

    4 pts
    Proficient – 3
    The presentation
    demonstrates
    consistent use of
    standard English
    conventions
    (mechanics,
    usage, grammar
    and syntax). (1-2
    MINOR errors) (4
    pts)

    3 pts
    Basic -3
    The presentation
    demonstrates
    inconsistent use of
    standard English
    conventions
    (mechanics,
    usage, grammar
    and syntax). (3-5
    errors). (3 pts)

    2 pts
    Minimal – 1
    The presentation
    does NOT
    demonstrate use
    of standard
    English
    conventions
    (mechanics,
    usage, grammar
    and syntax). (More
    than 5 errors). (2
    pts)

    6/10/25, 12:02 AM Unit 6: Writing Assignment

    https://belhaven.instructure.com/courses/46283/assignments/875160 4/4

    **## Unit6_WritingAssignment.pdf**

    Unit 6: Writing Assignment

    Due Saturday by 11:59pm
    Points 30
    Submitting a file upload

    Unit 6 Writing Assignment Rubric

    Start Assignment

    Writing Assignment: Submit by Saturday 11:59 p.m.

    Prompt: Recall the implications from this week’s focus chapter on NAEP reading proficiency.
    Write a paper addressing each of the following questions.

    What are the NAEP expectations for describing reading proficiency?
    Which of these expectations are sensible, and which need to be adjusted?
    What do you think of the challenges NAEP expectations present to students?
    Are these challenges reasonable?
    How far beyond NAEP-type expectations should instruction go?
    How can educators help improve reading proficiency?

    Requirements: This paper should be 250-500 words in the main body and contain in-text citations
    (you can use the textbook as a source), correctly formatted in APA. Adhere to Belhaven’s APA-
    compliant formatting, including a title and reference page.

    6/10/25, 12:02 AM Unit 6: Writing Assignment

    https://belhaven.instructure.com/courses/46283/assignments/875160 1/4

    Criteria Ratings Pts

    Organization &
    Content
    (InTASC 4,7)

    20 pts

     InTASC #4 –
    Content
    Knowledge

    The teacher
    understands the
    central
    concepts, tools
    of inquiry, and
    structures of the
    discipline(s) he
    or she teaches
    and creates
    learning
    experiences
    that make these
    aspects of the
    discipline
    accessible and
    meaningful for
    learners.
    threshold: 3.0 pts

    —

     InTASC #7B-
    1 – Planning for
    Instruction

    —

    20 pts
    Advanced – 4

    Assignment is
    organized in a
    clear and logical
    manner. All
    components of the
    assignment are
    included and are
    supported with
    solid research and
    sound educational
    practices. (20 pts)

    17 pts
    Proficient – 3

    Assignment has
    clear organization.
    Most of the
    components of the
    assignment are
    included and are
    supported by
    some research
    and sound
    educational
    practices. (17 pts)

    14 pts
    Basic -3

    Assignment’ s
    organization is not
    cohesive. Several
    components of the
    assignment are
    missing and there
    is little evidence of
    research and
    sound educational
    practices. (14 pts)

    11 pts
    Minimal – 1

    Assignment lacks
    organization and
    cohesion. The
    assignment does
    not address the
    stated
    components or
    use solid research
    or sound
    educational
    practices. (11 pts)

    4 pts
    Advanced – The
    candidate’s
    performance is
    exemplary and
    consistently
    exceeds
    expectations.
    Indications of a
    high level of
    critical and
    reflective
    thinking, with a
    depth of
    understanding a
    core knowledge
    base, as well as
    demonstrates
    academic and
    professional
    skills.

    3 pts
    Proficient – The
    candidate’s
    performance
    consistently
    meets
    expectations.
    The candidate
    effectively
    demonstrations
    the requirements
    with expected
    professional
    performance
    indicating an
    understanding of
    a core
    knowledge base
    with the
    application of
    critical thinking,
    academic, and
    professional
    skills.

    2 pts
    Basic – The
    candidate’s
    performance
    sometimes
    meets
    expectations but
    is not doing so
    consistently.
    Candidate
    demonstrates
    little depth of
    knowledge base
    understanding
    and little
    evidence of
    critical and/or
    reflective
    thinking

    1 pts
    Minimal – The
    candidate’s
    performance
    demonstrates
    mediocre work,
    very little effort
    or demonstration
    of responses to
    requirements.
    The candidate
    demonstrates
    little to no
    understanding of
    a core
    knowledge base
    with little to no
    critical/reflective
    thinking,
    academic or
    professional
    skills.

    4 pts
    Advanced – The
    candidate’s
    performance is

    3 pts
    Proficient – The
    candidate’s
    performance

    2 pts
    Basic – The
    candidate’s
    performance

    1 pts
    Minimal – The
    candidate’s
    performance

    6/10/25, 12:02 AM Unit 6: Writing Assignment

    https://belhaven.instructure.com/courses/46283/assignments/875160 2/4

    Criteria Ratings Pts

    (updated)

    The teacher
    draws upon
    knowledge of
    content areas,
    cross-
    disciplinary
    skills, learners,
    the community,
    and pedagogy
    to plan
    instruction that
    supports every
    student in
    meeting
    rigorous
    learning goals.
    (The teacher is
    able to plan
    instruction
    based upon
    knowledge of
    subject matter,
    students, the
    community, and
    curriculum
    goals.)
    threshold: 3.0 pts

    APA -compliant
    formatting

    5 pts

    exemplary and
    consistently
    exceeds
    expectations.
    Indications of a
    high level of
    critical and
    reflective
    thinking, with a
    depth of
    understanding a
    core knowledge
    base, as well as
    demonstrates
    academic and
    professional
    skills.

    consistently
    meets
    expectations.
    The candidate
    effectively
    demonstrations
    the requirements
    with expected
    professional
    performance
    indicating an
    understanding of
    a core
    knowledge base
    with the
    application of
    critical thinking,
    academic, and
    professional
    skills.

    sometimes
    meets
    expectations but
    is not doing so
    consistently.
    Candidate
    demonstrates
    little depth of
    knowledge base
    understanding
    and little
    evidence of
    critical and/or
    reflective
    thinking.

    demonstrates
    mediocre work,
    very little effort
    or demonstration
    of responses to
    requirements.
    The candidate
    demonstrates
    little to no
    understanding of
    a core
    knowledge base
    with little to no
    critical/reflective
    thinking,
    academic or
    professional
    skills.

    5 pts
    Advanced – 4
    Consistently
    follows APA
    format, including
    title page,
    citations, and
    References page
    when required.
    (NO errors) (5 pts)

    4 pts
    Proficient – 3
    Consistently
    follows APA
    format, including
    title page,
    citations, and
    References page
    when required. (1-

    3 pts
    Basic -3
    Limited (3-5)
    errors in APA
    format including
    title page,
    citations, and
    References page
    when required (3
    pts)

    2 pts
    Minimal – 1
    More than 5 APA
    errors in format,
    including title
    page, citations, or
    References page
    when required. (2
    pts)

    6/10/25, 12:02 AM Unit 6: Writing Assignment

    https://belhaven.instructure.com/courses/46283/assignments/875160 3/4

    Criteria Ratings Pts

    Mechanics

    5 pts

    Total Points: 30

    2 MINOR errors).
    (4 pts)5 pts

    Advanced – 4
    The presentation
    demonstrates
    exceptional use of
    standard English
    conventions
    (mechanics,
    usage, grammar
    and syntax). NO
    ERRORS. (5 pts)

    4 pts
    Proficient – 3
    The presentation
    demonstrates
    consistent use of
    standard English
    conventions
    (mechanics,
    usage, grammar
    and syntax). (1-2
    MINOR errors) (4
    pts)

    3 pts
    Basic -3
    The presentation
    demonstrates
    inconsistent use of
    standard English
    conventions
    (mechanics,
    usage, grammar
    and syntax). (3-5
    errors). (3 pts)

    2 pts
    Minimal – 1
    The presentation
    does NOT
    demonstrate use
    of standard
    English
    conventions
    (mechanics,
    usage, grammar
    and syntax). (More
    than 5 errors). (2
    pts)

    6/10/25, 12:02 AM Unit 6: Writing Assignment

    https://belhaven.instructure.com/courses/46283/assignments/875160 4/4

  • [Solved] Paraphrase

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    I need help with paraphasing – SLP3-RDS699E.pdf **SLP3-RDS699E.pdf** This file is too large to display. [View in new window](https://www.sweetstudy.com/files/slp3-rds699e-pdf) **SLP3-RDS699E.pdf** This file is too large to display. [View in new window](https://www.sweetstudy.com/files/slp3-rds699e-p…

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    I need help with paraphasing

    – SLP3-RDS699E.pdf

    **SLP3-RDS699E.pdf**

    This file is too large to display. [View in new window](https://www.sweetstudy.com/files/slp3-rds699e-pdf)

    **SLP3-RDS699E.pdf**

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  • [Solved] Dis

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    Chapter 2 – SLP2-RDS699E.pdf **SLP2-RDS699E.pdf** This file is too large to display. [View in new window](https://www.sweetstudy.com/files/slp2-rds699e-pdf) **SLP2-RDS699E.pdf** This file is too large to display. [View in new window](https://www.sweetstudy.com/files/slp2-rds699e-pdf)

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    Chapter 2

    – SLP2-RDS699E.pdf

    **SLP2-RDS699E.pdf**

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  • [Solved] Biology 2

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    – ## Week7-CellCycle1.pdf **## Week7-CellCycle1.pdf** 1 2 PRE-LAB EXERCISES Open the A&P app, and from the left-side menu, select Cells and Tissue, and then choose Chapter 3. Cell Life Cycle. Use the modules to guide your exploration of the life cycle of cells. Be sure to use the book icon to learn…

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    Assignment Prompt & Instructions

    – ## Week7-CellCycle1.pdf

    **## Week7-CellCycle1.pdf**

    1

    2

    PRE-LAB EXERCISES

    Open the A&P app, and from the left-side menu, select Cells and Tissue, and then choose Chapter
    3. Cell Life Cycle.

    Use the modules to guide your exploration of the life cycle of cells. Be sure to use the book icon to
    learn more about the cellular concepts that you are exploring.

    You are responsible for the identification of all bold terms and all answers to the questions.

    A. DNA Replication and the Cell Cycle

    1. Examine the illustration in Module 3.1 Replication to learn about the principles of DNA replication.
    Use this module to answer the following questions.

    3

    a. DNA is made of two long strands of nucleotides that form a double helix. The nucleotides in
    each strand pair up with a specific complementary base on the other strand. In the following
    illustration, examine a short piece of DNA, and based on the nucleotides that are labeled, fill in
    the blank nucleotides.

    b. When do cells copy their DNA?

    2. Examine the illustration in Module 3.2 Cell Cycle and use it to match each of the following terms with
    the correct description.

    A= Adenine
    T= Thymine
    C= Cytosine
    G= Guanine

    A

    AT

    G

    G

    TC

    4

    A. G0 Phase

    B. G1 Phase

    C. S Phase

    D. G2 Phase

    E. Interphase

    F. Mitosis

    G. Cytokinesis

    _______ DNA replication, or synthesis, occurs during this phase.

    _______ One cell splits into two cells during this phase.

    _______ This phase is characterized by cell growth, organelle duplication, and protein synthesis.

    _______ This phase includes all the phases except mitosis and cytokinesis.

    _______ This phase includes a series of events that a cell undergoes leading up to cell division.

    _______ This phase follows the S phase.

    _______ In this phase, cells are not actively progressing through the cell cycle. These cells are
    sometimes described as existing in a resting stage.

    5

    IN-LAB EXERCISES

    Use the following modules in Visible Body’s Anatomy & Physiology app to guide your exploration of
    the cell cycle. Be sure to select the book icon under the structure name to read information specific
    to that structure.

    You are responsible for the identification of all bold terms and all answers to the questions.

    Go to the Cells and Tissue unit and select Chapter 3. Cell Life Cycle.

    A. Mitosis and Meiosis

    1. Watch the video in Module 3.3 Mitosis and answer the following questions.

    a. In which stage of mitosis do the chromosomes condense and organize into chromatid pairs?

    b. In which stage of mitosis do the chromatid pairs line up along the cell’s midline?

    c. In which stage of mitosis are the chromatid pairs pulled apart, each toward an opposite end of
    the cell?

    d. In which stage of mitosis does the nuclear membrane reform?

    6

    2. Explore the 3D anatomical view in Module 3.4 Mitotic Spindle and answer the following questions.

    a. The mitotic spindle is composed of a network of which cytoskeletal filaments?

    b. Some types of chemotherapeutic drugs, used to treat cancer, disrupt microtubules and the
    mitotic spindle. Why are drugs that disrupt the mitotic spindle effective cancer treatments?

    Centrosome

    Microtubules

    7

    3. Examine the illustration in Module 3.5 Meiosis, comparing cells undergoing meiosis and mitosis, and
    answer the following questions.

    a. In humans, both meiosis and mitosis start with a cell that has __________duplicated
    chromosomes. Remember, cells duplicate their DNA during S phase in the cell cycle; this
    happens prior to meiosis or mitosis. Meiosis includes two rounds of cell division, whereas mitosis
    only has one. As a result, cells that arise from meiosis have __________ chromosomes and cells
    that arise from mitosis have __________ chromosomes.

    b. What is the difference between a diploid cell and a haploid cell?

    8

    4. Explore the 3D anatomical view in Module 3.6 Meiosis and Gametes and answer the following
    questions.

    1. Where does meiosis occur?

    2. Why is mitosis incompatible with the production of sex cells, specifically, sperm and oocytes?

    TIME TO PRACTICE!
    GO TO THE QUIZZES MENU AND COMPLETE CELL LIFE CYCLE QUIZ 3.A.

    Testes

    9

    PUTTING IT ALL TOGETHER

    In cellular physiology, there are almost always exceptions to the rules! Here are a few examples of rule
    breakers in the world of the cell cycle.

    1. During the first few days of human development, cell proliferation is very rapid, and as cells divide by
    mitosis, the G1 and G2 phases are very short. How do you think this impacts cell size during this period
    of development?

    2. The cells in red bone marrow that produce blood platelets are called megakaryocytes, which can be
    loosely translated as big nucleus cells. These cells continue to move through the cell cycle, but they
    skip mitosis and cytokinesis. Review the steps of the cell cycle. What do you think the result of this
    modified cell cycle would be?

    3. Cell growth and progression through the cell cycle is a process that requires tight regulation. We
    have specific genes that can inhibit the progression of a cell through the cell cycle. If these genes are
    damaged through a mutation, what could be the consequence?

    10

    11

    Module 3.4 Mitotic Spindle

    12

    Module 3.6 Meiosis and Gametes

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    02. undefined_2:
    03. undefined_3:
    04. undefined_4:
    05. undefined_5:
    06. undefined_6:
    07. undefined_7:
    08. DNA replication or synthesis occurs during this phase:
    09. One cell splits into two cells during this phase:
    10. This phase is characterized by cell growth organelle duplication and protein synthesis:
    11. This phase includes all the phases except mitosis and cytokinesis:
    12. This phase includes a series of events that a cell undergoes leading up to cell division:
    13. This phase follows the S phase:
    14. In this phase cells are not actively progressing through the cell cycle These cells are:
    15. duplicated:
    16. chromosomes and cells:
    17. chromosomes:
    18. undefined_8:
    19. undefined_9:
    20. undefined_10:
    21. Text392:

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    **## Week7-CellCycle1.pdf**

    1

    2

    PRE-LAB EXERCISES

    Open the A&P app, and from the left-side menu, select Cells and Tissue, and then choose Chapter
    3. Cell Life Cycle.

    Use the modules to guide your exploration of the life cycle of cells. Be sure to use the book icon to
    learn more about the cellular concepts that you are exploring.

    You are responsible for the identification of all bold terms and all answers to the questions.

    A. DNA Replication and the Cell Cycle

    1. Examine the illustration in Module 3.1 Replication to learn about the principles of DNA replication.
    Use this module to answer the following questions.

    3

    a. DNA is made of two long strands of nucleotides that form a double helix. The nucleotides in
    each strand pair up with a specific complementary base on the other strand. In the following
    illustration, examine a short piece of DNA, and based on the nucleotides that are labeled, fill in
    the blank nucleotides.

    b. When do cells copy their DNA?

    2. Examine the illustration in Module 3.2 Cell Cycle and use it to match each of the following terms with
    the correct description.

    A= Adenine
    T= Thymine
    C= Cytosine
    G= Guanine

    A

    AT

    G

    G

    TC

    4

    A. G0 Phase

    B. G1 Phase

    C. S Phase

    D. G2 Phase

    E. Interphase

    F. Mitosis

    G. Cytokinesis

    _______ DNA replication, or synthesis, occurs during this phase.

    _______ One cell splits into two cells during this phase.

    _______ This phase is characterized by cell growth, organelle duplication, and protein synthesis.

    _______ This phase includes all the phases except mitosis and cytokinesis.

    _______ This phase includes a series of events that a cell undergoes leading up to cell division.

    _______ This phase follows the S phase.

    _______ In this phase, cells are not actively progressing through the cell cycle. These cells are
    sometimes described as existing in a resting stage.

    5

    IN-LAB EXERCISES

    Use the following modules in Visible Body’s Anatomy & Physiology app to guide your exploration of
    the cell cycle. Be sure to select the book icon under the structure name to read information specific
    to that structure.

    You are responsible for the identification of all bold terms and all answers to the questions.

    Go to the Cells and Tissue unit and select Chapter 3. Cell Life Cycle.

    A. Mitosis and Meiosis

    1. Watch the video in Module 3.3 Mitosis and answer the following questions.

    a. In which stage of mitosis do the chromosomes condense and organize into chromatid pairs?

    b. In which stage of mitosis do the chromatid pairs line up along the cell’s midline?

    c. In which stage of mitosis are the chromatid pairs pulled apart, each toward an opposite end of
    the cell?

    d. In which stage of mitosis does the nuclear membrane reform?

    6

    2. Explore the 3D anatomical view in Module 3.4 Mitotic Spindle and answer the following questions.

    a. The mitotic spindle is composed of a network of which cytoskeletal filaments?

    b. Some types of chemotherapeutic drugs, used to treat cancer, disrupt microtubules and the
    mitotic spindle. Why are drugs that disrupt the mitotic spindle effective cancer treatments?

    Centrosome

    Microtubules

    7

    3. Examine the illustration in Module 3.5 Meiosis, comparing cells undergoing meiosis and mitosis, and
    answer the following questions.

    a. In humans, both meiosis and mitosis start with a cell that has __________duplicated
    chromosomes. Remember, cells duplicate their DNA during S phase in the cell cycle; this
    happens prior to meiosis or mitosis. Meiosis includes two rounds of cell division, whereas mitosis
    only has one. As a result, cells that arise from meiosis have __________ chromosomes and cells
    that arise from mitosis have __________ chromosomes.

    b. What is the difference between a diploid cell and a haploid cell?

    8

    4. Explore the 3D anatomical view in Module 3.6 Meiosis and Gametes and answer the following
    questions.

    1. Where does meiosis occur?

    2. Why is mitosis incompatible with the production of sex cells, specifically, sperm and oocytes?

    TIME TO PRACTICE!
    GO TO THE QUIZZES MENU AND COMPLETE CELL LIFE CYCLE QUIZ 3.A.

    Testes

    9

    PUTTING IT ALL TOGETHER

    In cellular physiology, there are almost always exceptions to the rules! Here are a few examples of rule
    breakers in the world of the cell cycle.

    1. During the first few days of human development, cell proliferation is very rapid, and as cells divide by
    mitosis, the G1 and G2 phases are very short. How do you think this impacts cell size during this period
    of development?

    2. The cells in red bone marrow that produce blood platelets are called megakaryocytes, which can be
    loosely translated as big nucleus cells. These cells continue to move through the cell cycle, but they
    skip mitosis and cytokinesis. Review the steps of the cell cycle. What do you think the result of this
    modified cell cycle would be?

    3. Cell growth and progression through the cell cycle is a process that requires tight regulation. We
    have specific genes that can inhibit the progression of a cell through the cell cycle. If these genes are
    damaged through a mutation, what could be the consequence?

    10

    11

    Module 3.4 Mitotic Spindle

    12

    Module 3.6 Meiosis and Gametes

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    02. undefined_2:
    03. undefined_3:
    04. undefined_4:
    05. undefined_5:
    06. undefined_6:
    07. undefined_7:
    08. DNA replication or synthesis occurs during this phase:
    09. One cell splits into two cells during this phase:
    10. This phase is characterized by cell growth organelle duplication and protein synthesis:
    11. This phase includes all the phases except mitosis and cytokinesis:
    12. This phase includes a series of events that a cell undergoes leading up to cell division:
    13. This phase follows the S phase:
    14. In this phase cells are not actively progressing through the cell cycle These cells are:
    15. duplicated:
    16. chromosomes and cells:
    17. chromosomes:
    18. undefined_8:
    19. undefined_9:
    20. undefined_10:
    21. Text392:

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