Exam 7: Cell Cycles

The microtubules that make up the mitotic spindle attach themselves to special structures that are found in the centromere region of the chromosome. What term refers to these specialized structures?

Which of the following best compares animal and plant cell division?

When does cytokinesis typically begin?

When does a cell commit to undergoing mitosis?

Figure 7-1 Photomicrograph by Dr. Conly L. Rieder, East Greenbush, New York -Which stage of mitosis is shown in photo E in the figure?

What happens to each daughter cell at the end of mitosis?

Which of the following occurs during metaphase of mitosis?

For each phrase, choose the most appropriate component of cell cycle regulation. Each component may be used once, more than once, or not at all. -regulates cell division

Which of the following is synonymous with cellular senescence?

Which of the following would be revealed by a comparison of a cancer cell and a normal cell?

Identify the stage of mitosis in which each activity occurs. -Sister chromatids are pulled to opposite spindle poles.

At what point during the cell cycle do chromosomes decondense into chromatin?

When growing animal cells in a culture, what must be added to the culture medium for growth to occur?

Early in mitosis, chromatin condenses into the compact, rodlike structures known as chromosomes. What process takes place more easily as a result?

How is cytokinesis different in plant and animal cells?

When does replication of DNA occur?

Which of the following are direct results of mitosis in your body?

Identify the stage of mitosis in which each activity occurs. -Chromosomes align at the centre of the cell.

In general, microtubules disassemble and consequently pull the chromatids to the ends of the spindle. When does this occur?

For each phrase, choose the most appropriate component of cell cycle regulation. Each component may be used once, more than once, or not at all. -levels remain constant throughout the cell cycle