Cycle Review

What are the enzymes that are involved in DNA Replication?

• Lactase, Helicase, Polmase

• Helicase, DNA Polymerase, Ligase

• DNA Polymerase, Lactase, Enzymase

• DNA Polymerase, Helicase, Lactase

Which choice best describes the cell cycle?

• Cells grow and develop during

  interphase. Cells reproduce during the mitotic phase.

• Cells grow and develop during the mitotic phase. Cells reproduce during interphase.

• The nucleus of a cell divides during

  interphase. The cytoplasm of a cell divides during the mitotic phase.

• The nucleus of a cell divides during the

  mitotic phase. The cytoplasm of a cell divides interphase.

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This model of the cell cycle includes two arrows that each represent a process in the cycle. What do the two arrows represent?

• Arrow 1 represents prophase, and Arrow 2 represents interphase.

• Arrow 1 represents mitosis, and Arrow 2 represents meiosis.

• Arrow 1 represents interphase, and Arrow 2 represents mitosis.

• Arrow 1 represents mitosis, and Arrow 2 represents prophase.

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The condensation of chromatin into chromosomes is a characteristic of which phase of mitosis?

• Metaphase

• Anaphase

• Telophase

• Prophase

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Chromosomes are often made visible using Giemsa staining. This stain shows specific banding patterns for chromosomes, and helps scientists organize them under a microscope. Considering that chromosomes are the standard unit of organization for a cell’s DNA, during which phase of the cell cycle would chromosomes most likely be visible?

• G2 Phase

• Mitosis Phase

• All Phases

• S Phase

• G2 Phase

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During what stage of the cell cycle would you expect to have the lowest amount of cellular growth and synthesis taking place?

• G2 Phase

• Mitosis

• G1 Phase

• S Phase

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The stages of the cell cycle are shown in random order below.  Starting with prophase, sequence the diagrams to show the stages of mitosis.  
                       

• 5-3-1-2-4
• 3-1-4-2-5
• 4-1-2-5-3
• 2-3-1-5-4

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A daughter cell that resulted from a mitotic division has 24 chromosomes.  How many chromosomes did the parent cell have?   

• 6
• 12
• 24
• 48

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What must occur during the cell cycle to ensure proper division of the chromosomes?  

• The cell must grow in size
• The mitochondria must divide 
• The DNA of the cell must replicate
• The cell membrane must dissolve

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The diagram to the right shows the phase of mitosis when the centrioles are at opposite poles of the cell and the chromosomes are lined up midway between the centrioles. Which phase would be the next phase of mitosis?   
  

• anaphase
• prophase
• interphase
• telophase

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