Chapter 9 Cell Division

What can limit the size of a cell?

• frequency of the cell cycle

• maximum rate of cell mitosis

• nutrient and energy levels

• ratio of surface to volume

Which occurs during cytokinesis?

• binary fission takes place

• cytoplasm divides

• DNA duplicates

• spindle apparatus forms

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What type of concern is raised by embryonic stem cell research?

• ethical

• medical cost

• public health

• scientific

What results in a condition called cancer?

• A normal cell cycle

• An abnormal cell cycle

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What can be caused by an overexposure to X rays?

• A normal cell cycle

• An abnormal cell cycle

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What involves special proteins called cyclins?

• A normal cell cycle

• An abnormal cell cycle

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What has an environmental limit to prevent cells from dividing endlessly?

• A normal cell cycle

• An abnormal cell cycle

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During which phase of mitosis do the chromosomes appear?

• Prophase

• Metaphase

• Anaphase

• Telophase

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During which phase of mitosis do the chromosomes line up in the middle of the cell?

• Prophase

• Metaphase

• Anaphase

• Telophase

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During which phase of mitosis do the chromosomes move towards the poles of the cell?

• Prophase

• Metaphase

• Anaphase

• Telophase

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