CHECKPOINT #2.7: Cell Cycle & Mitosis

During a biology class experiment, students are observing different phases of mitosis under a microscope. They see the chromosomes line up along the middle of the cell they are observing in the (a)   phase.

• a. Prophase
• b. Metaphase
• c. Anaphase
• d. Telophase

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Imagine you are observing a cell under a microscope. The two stages you see that are not part of mitosis but are part of the cell cycle are:

• a. Prophase and Interphase

• b. Interphase and Metaphase

• c. Interphase and Cytokinesis

• d. Cytokinesis and Anaphase

A group of scientists are studying the life cycle of a cell in a lab. They noticed that the cell spends most of its time in the __________ .

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A scientist is studying a specific type of cell that has 14 chromosomes. After the cell undergoes mitosis, each of the daughter cells have 14 chromosomes.

• True

• False

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During cytokinesis, (a)   divides.

• a. Nucleus
• b. Cytoplasm
• c. Chromosomes
• d. Cell membrane

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During the process of cell division in a human body, what happens to the chromosomes during anaphase?

• a. They condense

• b. They replicate

• c. They divide into two sets

• d. They move towards the opposite poles

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Imagine you are observing a cell under a microscope. What would you notice about the amount of DNA in the cell's nucleus just before the cell begins the process of mitosis?

• a. The amount of DNA is halved

• b. The amount of DNA is doubled

• c. The amount of DNA remains the same

• d. The DNA is destroyed

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What is the end result of mitosis and cytokinesis?

• a. Two daughter cells with half the genetic material

• b. Two daughter cells with double the genetic material

• c. Two daughter cells with the same genetic material

• d. Two daughter cells with no genetic material

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The structure labeled A is a(n)

• chromatid
• centriole
• centromere
• chromophere

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Which cell structure produces the spindle fibers?

• Centromeres
• Centrioles
• Chromatids
• Ribosomes

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