Unit 7: Cell Cycle Quiz

The chromosomes line up along the center of the cell and the spindle fibers attach to each chromosome at the centromere. What phase is this cell in?

• Cytokinesis
• Mitosis
• Prophase
• Metaphase

The spindle fiber splits the centromere and the chromatids move to opposite sides of the cell. What phase is this cell in?

• Mitosis
• Interphase
• Anaphase
• Telophase

The chromatin condenses and spindle fibers form at each side of the cell. The nuclear membrane breaks apart. What phase is this cell in?

• Mitosis
• Interphase
• Prophase
• Telophase

What part of the cell cycle results in the splitting of the new cells?

• Anaphase

• Interphase
• Prophase

• Cytokinesis

The relative amount of DNA in a cell at various stages of the cell cycle is shown in Figure 1 . Which of the following best describes how the amount of DNA in the cell changes during S phase?

• The amount of DNA doubles as the DNA is replicated.

• The amount of DNA slightly increases as a result of new organelle synthesis.

• The amount of DNA does not change while the cell grows.

• The amount of DNA is halved as the cell divides into two daughter cells.

Researchers determined the average amount of time that a particular type of eukaryotic cell spends in each phase of the cell cycle. What percentage of time do cells typically spend in interphase?

• 5%

• 35%

• 50%

• 95%

What is the name of chromatin that has been replicated and condensed into two strand rods represented by Structure A?

• chromatid
• chromosome
• centromere

Fruit fly body cells have 8 chromosomes. After mitosis, you would expect a resulting fruit fly daughter cell to have -

• 16 chromosomes.
• 46 chromosomes.
• 8 chromosomes.
• 4 chromosomes.

The nuclear membrane reforms and chromosomes spread out as chromatin. There are two clear cells with two nuclei. What phase is this cell in?

• Prophase
• Metaphase
• Anaphase
• Telophase

What is the correct term for "cylinder-shaped organelles found in animal cells which help to form spindle fibers during cell division"?

• Centriole
• Centrosome
• Chromatid
• Chromosome