Mitosis review

A rat has 42 chromosomes in each somatic cell. How many chromosomes are in each mitotic cell?

• 21

• 36

• 40

• 42

Genetically identical daughter cells are produced by what process?

• meiosis

• mitosis

• fertilization

• transcription

During which stage of mitotic division do chromosomes align at the equator of the cell?

• prophase

• metaphase

• anaphase

• telophase

The models represent the stages of the cell cycle in the random order.

What is occurring within the cell labeled II?

• A cleavage furrow is forming to divide the cell into two daughter cells.

• DNA is replicated so there are two copies of each chromosome in each daughter cell.

• Chromatin is condensing to form visible chromosomes.

• The spindle is attaching to chromatids to move them to the middle.

Telophase is a stage of a cellular process that begins after the chromosomes have moved to opposite poles of the

cell. During which cellular process does telophase occur?

• Translation

• Interphase

• Transcription

• Mitosis

What is the purpose of mitosis?

• It guarantees that each daughter cell has half the amount of DNA of parent cells.

• It ensures that new nuclei have an exact copy of DNA.

• It ensures the reproduction of mitochondria and chloroplasts.

• It prevents the occurrence of cancer cells.

During prophase, chromosomes become visible, the spindle forms, and the nucleolus and nuclear envelope

disappear. In which cellular process does prophase occur?

• Mitosis

• DNA replication

• Interphase

• Growth

Mitosis is the process of cell division. Through a series of stages, a single cell divides into two identical daughter cells, each with the same number of chromosomes as the first cell. What are the stages of mitosis, in order as they occur?

• anaphase, metaphase, prophase, telophase

• telophase, anaphase, metaphase, prophase

• prophase, anaphase, metaphase, telophase

• prophase, metaphase, anaphase, telophase

The diagram represents several phases of the cell cycle.

Refer to the diagram above. During which phase does DNA replication occur?

• G1

• S

• G2

• M

Refer to the diagram shown above. What occurs at G1?

• Chromatin condenses to form chromosomes

• Cleavage of cytoplasm and formation of cell plate

• Period of growth and development between mitotic divisions

• Nuclear membrane, nucleolus, and chromatin fade