Phases of Mitosis
Key Terms
Processes
Cell Checkpoints
Cell Structures
100

This is the phase where the chromosomes align in the middle of the cell

What is metaphase?

100

These structures attach to centromeres to help pull chromosomes apart.

What are spindle fibers?

100

The process of mitosis results in this many daughter cells

What are two daughter cells?

100

This checkpoint ensures the cell has grown enough and has no DNA damage before DNA replication begins.

What is the G1 checkpoint?

100

This organelle houses the DNA and plays a key role in mitosis.

What is the nucleus?

200

This phase is characterized by the separation of sister chromatids to opposite poles.

What is anaphase?

200

The region where sister chromatids are joined.

What is the centromere?

200

Mitosis is a type of cell division necessary for this biological purpose

What is growth and repair?

200

This checkpoint verifies that all DNA has been accurately replicated before mitosis begins.

What is the G2 checkpoint?

200

These structures, found in animal cells, help organize the spindle fibers.

What are centrioles?

300

This phase is when the nuclear envelope re-forms and the chromosomes decondense.

What is telophase?

300

The structures that organize spindle fibers during mitosis.

What are centrosomes?

300

This cell structure dissolves during prophase.

What is the nuclear envelope?

300

This checkpoint ensures that all chromosomes are properly aligned and attached to spindle fibers before separation.

What is the M checkpoint (spindle checkpoint)?

300

After sister chromatids separate during anaphase, they are referred to by this name.

What are daughter chromosomes?

400

This phase precedes mitosis and is crucial for DNA replication.

What is interphase?

400

These are the two identical copies of a chromosome held together.

What are sister chromatids?

400

The phase where the cleavage furrow forms in animal cells.

What is telophase/cytokinesis?

400

This process, triggered by checkpoint failure, allows damaged cells to continue dividing and can lead to tumor formation.

What is unregulated cell division?

400

These protein structures connect sister chromatids to the spindle fibers.

What are kinetochores?

500

This is the first official phase of mitosis where chromosomes condense and the nuclear envelope breaks down.

What is prophase?

500

The division of the cytoplasm after mitosis.

What is cytokinesis?

500

Plant cells form this structure instead of a cleavage furrow during cytokinesis.

What is the cell plate?

500

This programmed cell death process is activated when a cell fails to pass critical checkpoints and cannot repair damage.

What is apoptosis?

500

Cells produced by mitosis are described as this because they contain two complete sets of chromosomes.

What are diploid cells?

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