The Cell Cycle, Mitosis, And Cell Signaling

30 Questions

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Mitosis Quizzes & Trivia

. The abilty of aorganisms to reproduce best distinguisehes living things from non living matter.


Questions and Answers
  • 1. 
    A special type of divison ______ produces non identical daughter cells (gametes, or sperm, and egg cells.
  • 2. 
    An _____ (a radial array of short microtubules) extends from each centrosome. The spindle includes the centrosomes, the spindle microtubules, and the asters
  • 3. 
    Anaphase: Sister chromatids separate at the centromeres. Daughter chromosomed are moved to opposite poles of the cell. Motor proteins move the chromosomes along the spindle microtubules. kinetochore microtubules shorten. The cell elongates due to lengthening of nonkinetochore microtubules.
  • 4. 
    At the end of Metaphase, how many chromatids are present in one human cell?
    • A. 

      23

    • B. 

      46

    • C. 

      92

  • 5. 
    A______ is a group of genetically identical individuals from the same parent.
  • 6. 
    Binary fission occurs in_______ ________. Two_____ cells arise from ______ cell.
  • 7. 
    Binary Fission. "______ ___ ______"
  • 8. 
    By the end of Anaphase, How many chromosomes are present in one human cell?
    • A. 

      0

    • B. 

      92

    • C. 

      46

  • 9. 
    By the end of metaphase,  how may chromosomes are present in one human cell?
    • A. 

      46

    • B. 

      23

    • C. 

      92

  • 10. 
    Cell divion is an integral part of the______. the life of the a cell from formation to its own division.
    • A. 

      Eukarytoic species

    • B. 

      Cell cycle

    • C. 

      Centrome

  • 11. 
    During prophase, assembly of spindle microtubules begins in the _________, the microtuble organizing center.
  • 12. 
    Eukaryotic chromosomes are composed of ______.
    • A. 

      Gametes

    • B. 

      Centrome

    • C. 

      Chromatin

  • 13. 
    Every eukaryotic species has a characteristic number of chromosomes in each cell nucleus. ______ ______. (non reproductive cells_ have two sets of chromosomes. ________. (reproductive cells: sperm and egsg) have half as many chromosomes are somatic cells.
  • 14. 
    How many cells are available by the end of interphase
    • A. 

      92

    • B. 

      23

    • C. 

      46

  • 15. 
    How many chromatids are present in one cell
    • A. 

      46

    • B. 

      92

    • C. 

      23

  • 16. 
    How many chromosomes are present in one cell?
    • A. 

      46

    • B. 

      23

    • C. 

      92

  • 17. 
    In Unicellular organisms, division of one cell _______ the entire organism.
  • 18. 
    Interphase in the cytoplam contains what?
    • A. 

      Cytoplasmic contents double, Two centromsomes

    • B. 

      Cytoplasmic contents double, Chromosomes duplicate during the S phase.

    • C. 

      Cytoplasmic contents double, Nucleoli, sites of ribosome assembly, are visible.

  • 19. 
    Interphase in the nucleus.
    • A. 

      Cytoplasmic contents double, Chromosomes duplicate during the S phase.

    • B. 

      Chromosomes duplicate during the S phase, Nucleoli, sites of ribosome assembly, are visible.

    • C. 

      Chromosomes duplicate during the S phase, Cytoplasmic contents double,

  • 20. 
    Interphase: duplication of cell contents
    • A. 

      G1-growth, increase in cytoplam.... S-duplication of chromosomes....G2-growth,preparation for division

    • B. 

      G1-growth, increase in cytoplam,..... G2-growth,preparation for division... sister chromatids.

    • C. 

      G2-growth,preparation for division.... prohase....S-duplication of chromosomes

  • 21. 
    Living Organisms are reproduced by two methods. ___________. Offspring are identical to the original cell or organism. Involves inheritance of all genes from one parent clone.___________. Offspring are similar to parents, but show variations in traits. Involves inheritance of unique sets of genes from two parents.
  • 22. 
    Mitosis progresses through a series of stages: Prophase, Prometaphase, metaphase , Anaphase
    • A. 

      True

    • B. 

      False

  • 23. 
    Most cell division_____ results in daughter cells with identical genetic information, DNA
    • A. 

      Mitosis

    • B. 

      Meiosis

    • C. 

      Gametes

  • 24. 
    Multicellular organisms depend on cell division for: Development from a fertalized cell, growth, repair.
    • A. 

      True

    • B. 

      False

  • 25. 
    Prophase: In the _______, chromosomes coil and become compact, and the nucleoli dissappear.
  • 26. 
    Prophase: In the ________, microtubules begin to emerge from centrosomes, forming the spindle.
  • 27. 
    The cell cycle is an ordered sequence of events for cell division. it consists of two stages.________, and ________ _______.
  • 28. 
    The centrosome replicates, forming ____ centrosomes that migrate to opposite ends of the cell, as spindle microtubules grow out from them.
  • 29. 
    The continuity of life is based on the reproduction of cells, or __________
  • 30. 
    The _____ _______ is am apparatus of microtubles that controls chromosomes movement during mitosis.