Ch 12 Biology

40 Questions | Total Attempts: 133

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Biology Quizzes & Trivia

Mitosis and sister chromatids. 5 phases of division.


Questions and Answers
  • 1. 
    During ________ both the contents of the nucleus and the cytoplasm are divided.
    • A. 

      Mitotic phase

    • B. 

      Mitosis

    • C. 

      G2

    • D. 

      G1

    • E. 

      S

  • 2. 
    During ________ the cell grows and replicates both its organelles and its chromosomes
    • A. 

      Cytokinesis

    • B. 

      S

    • C. 

      Mitosis

    • D. 

      Interphase

    • E. 

      G1

  • 3. 
    What event does NOT take place before the star of mitosis?
    • A. 

      Organelle proliferate

    • B. 

      DNA is replicated

    • C. 

      The nuclear envelope disintegrates

    • D. 

      The parent cell grows

  • 4. 
    True or False? Mitosis takes place during the M phase, which is the longest phase of the cell cycle.
    • A. 

      True

    • B. 

      False

  • 5. 
    Which term describes two recently replicated DNA strands that are joined together just before cell division?
    • A. 

      Centromere

    • B. 

      Centrosome

    • C. 

      Sister Chromatid

    • D. 

      Centriole

  • 6. 
    During which stage of mitosis are chromosome slined up in the center of the cell
    • A. 

      Anaphase

    • B. 

      Telophase

    • C. 

      Metaphase

    • D. 

      Prophase

  • 7. 
    Which stage of mitosis is characterized by the didintegration of mitotic spindles and the formation of the two new nuclear membranes?
    • A. 

      Metaphase

    • B. 

      Prophase

    • C. 

      Telophase

    • D. 

      Anaphase

  • 8. 
    To which part of the centromere do mitotic spindle fibers attach during prometaphase
    • A. 

      Microtubule

    • B. 

      Kinetochore

    • C. 

      Chromosome

    • D. 

      Centriole

  • 9. 
    During which substage of mitosis do sister chromatids break apart and start moving to opposite poles of the cell?
    • A. 

      Telophase

    • B. 

      Metaphase

    • C. 

      Prophase

    • D. 

      Anaphase

  • 10. 
    Which of the following is a function of the S phase in the cell cycle?
    • A. 

      The separation of sister chromatids

    • B. 

      The sorting of chromosomes

    • C. 

      The synchronization of organelle division

    • D. 

      The synthesis of sister chromatids

  • 11. 
    The copying of chromosomes occurs during which of the following phases of the cell cycle?
    • A. 

      S pahse

    • B. 

      G2 phase

    • C. 

      M phase

    • D. 

      G1 phase

  • 12. 
    For the first several divisions of early frog embryos, cells proceed directly from the M phase to the S phase and back to M without gaps. Which of the following is likely to be true about dividing cells in early frog embryos?
    • A. 

      The cells get smaller with each generation

    • B. 

      The cells do not divide by mitosis.

    • C. 

      The number of chromosomes decreases with each generation

    • D. 

      Frog embryos do not have DNA.

  • 13. 
    True or false? The M phase is characterized by the replication and division of a cell's chromosomes.
    • A. 

      True

    • B. 

      False

  • 14. 
    If an organism normally has 34 chromosomes, how many molecules of DNA should there be in the G1 phase of the cell cycle?
    • A. 

      34

    • B. 

      68

    • C. 

      17

    • D. 

      136

  • 15. 
    • A. 

      Complete chromosome replication

    • B. 

      Synthesis of cyclins by growth factors and activation of a cyclin-Cdk complex

    • C. 

      Chromosomes lined up along the metaphase plate

    • D. 

      Poor nutrient conditions

  • 16. 
    Nucleoli are present during _____.
    • A. 

      Interphase

    • B. 

      Metaphase

    • C. 

      Prophase

    • D. 

      Prometaphse

    • E. 

      Anaphase

  • 17. 
    Cytokinesis often, but not always, accompanies _____.
    • A. 

      Metaphase

    • B. 

      Prometaphase

    • C. 

      Telephase

    • D. 

      Interphase

    • E. 

      Anaphase

  • 18. 
    Chromosomes become visible during _____.
    • A. 

      Interphase

    • B. 

      Metaphase

    • C. 

      Prometaphase

    • D. 

      Prophase

    • E. 

      Anaphase

  • 19. 
    Centromeres divide and sister chromosomes become full-fledged chromosomes during _____.
    • A. 

      Telopohase

    • B. 

      Anaphase

    • C. 

      Metaphase

    • D. 

      Prometaphase

    • E. 

      Interphase

  • 20. 
    Spindle fibers attach to kinetochores during _____.
    • A. 

      Interphase

    • B. 

      Anaphase

    • C. 

      Metaphase

    • D. 

      Telophase

    • E. 

      Prometaphase

  • 21. 
    During prophase a homologous pair of chromosomes consists of _____.
    • A. 

      Two chromosomes and two chromatids

    • B. 

      One chromosome and four chromatids

    • C. 

      One chromosome and two chromatids

    • D. 

      Four chromosomes and two chromatids

    • E. 

      Two chromosomes and four chromatids

  • 22. 
    Http://media.pearsoncmg.com/bc/bc_campbell_biology_8/img/activities_quizzes/1211q.swfThis animation illustrates the events of _____.
    • A. 

      Metaphase

    • B. 

      Interphase

    • C. 

      Prophase

    • D. 

      Anaphase

    • E. 

      Telophase

  • 23. 
    Http://media.pearsoncmg.com/bc/bc_campbell_biology_8/img/activities_quizzes/1212q.swfThis animation illustrates the events of _____.
    • A. 

      Metaphase

    • B. 

      Cytokinesis as it occurs in animal cells

    • C. 

      Prometaphase

    • D. 

      Cytokinesis as it occurs in plant cells

    • E. 

      Prophase

  • 24. 
    Http://media.pearsoncmg.com/bc/bc_campbell_biology_8/img/activities_quizzes/1213q.swf This animation illustrates the events of _____.
    • A. 

      Anaphase

    • B. 

      Prometaphase

    • C. 

      Interphase

    • D. 

      Prophase

    • E. 

      Telophase

  • 25. 
    Http://media.pearsoncmg.com/bc/bc_campbell_biology_8/img/activities_quizzes/1214q.swf this illustrates the events of ________.
    • A. 

      Metaphase

    • B. 

      Telophase

    • C. 

      Prophase

    • D. 

      Anaphase

    • E. 

      Prometaphase