11. Cell Division

Through a microscope, you can see a cell plate beginning to develop across the middle of a cell, and nuclei forming on either side of the cell plate. This cell is most likely

a. An animal cell in the process of cytokinesis

b. A plant cell in the process of cytokinesis

c. A bacterial cell dividing

d. A plant cell in metaphase

Which statement about the daughter cells following mitosis and cytokinesis is correct? a. They are genetically different from each other and from the parent cell. b. They are genetically identical to each other and to the parent cell. c. They are genetically identical to each other but different from the parent cell. d. Only one of the two daughter cells is genetically identical to the parent cell.

Identify at least two events in the cell cycle that must be completed successfully for daughter cells to share an identical complement of chromosomes.

The drug cytochalasin B blocks the function of actin. Which of the following aspects of the animal cell cycle would be most disrupted by cytochalasin B?

a. Spindle formation

b. Spindle attachment to kinetochores

c. Cell elongation during anaphase

d. Cleavage furrow formation and cytokinesis

When a fruit fly embryo first begins to develop, a large cell is generated that contains over 8000 genetically identical nuclei. What is most likely responsible for this result?

Draw one eukaryotic chromosome as it would appear during interphase, during each of the stages of mitosis, and during cytokinesis. Also, draw and label the nuclear envelope and any microtubules attached to the chromosome(s).

Compare cytokinesis in plant and animal cells.

In what ways are the two processes similar?

In what ways are they different?