Cell Cycle Summative Practice

Mitosis starts with one cell and ends with...

• one cell

• two cells

• three cells

• four cells

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What best explains the role of cellular division?

• to grow, develop, and repair tissue

• to eliminate unneeded cells

• to produce egg and sperm cells

• to eliminate waste from your body

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How do cells develop into different kinds of tissues?

• Same genes are expressed at the same time

• Certain genes are turned on and off in each tissue.

• Process by which cells become unspecialized
• Process by which cells die

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DNA replication is important for mitosis because...

• it results in a variety of traits amongst the same type of cells

• it ensures more genetic material in the strongest cells

• it ensures both cells will have identical, correct genetic information

• it creates variety amongst cells

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What process best explains how muscle cells and nerve cells can develop from the same fertilized egg?

• genetic engineering
• survival of the fittest
• gene regulation

• selective breeding

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Which best explains why muscle cells are different from blood cells?

• Muscle cells are produced by the brain, but blood cells are produced by the heart. 
• Different genes are activated in muscle cells than in blood cells. 
• Muscles cells experience different environmental influences than blood cells. 
• A mutation occurs during the development of muscle cells but not in blood cells. 

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Which is an example of cell differentiation?

• All mammal cells are identical.

• All cells have cilia at the adult stage.

• The DNA is different in all somatic cells.

• Fat cells have a different job than nerve cells.

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The diagram shows the process of cell development through mitosis. During this process stem cells become specialized body cells such as nerve cells, muscle cells, and blood cells. How are these specialized cells similar to one another and?

• All the cells have the same DNA.

• All the cells have the same function.

• All the cells produce the same proteins.

• All the cells produce nutrients the body needs.

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• Prophase
• Interphase
• Anaphase
• Telophase

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the two halves of the doubled chromosome structure

• centromeres

• sister chromatids

• spindle

• tissues