Biology · Grades 10–12 · Interactive learning companion

Process of Mitosis Simulation

Track duplicated chromosomes through nuclear division and explain how mitosis produces two genetically equivalent daughter nuclei.

Landscape activity · use fullscreen on a phone for larger controls

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📝 Description

Process of Mitosis Simulation is a biology learning activity that visually explains the stages of cell division. Students move through phases step by step and observe how chromosomes and cells change during mitosis. It is useful for biology lessons, revision, and visual concept support.

📋 Instructions

Follow the on-screen sequence and move through each mitosis phase. Observe the visual changes and use the activity for step-by-step revision.

🎓 Learning Guide: Process of Mitosis Simulation

Learning focus: Track duplicated chromosomes through nuclear division and explain how mitosis produces two genetically equivalent daughter nuclei.

Biology Grades 10–12 Interactive learning companion

Learning objectives

Place prophase, metaphase, anaphase and telophase in the correct sequence.
Describe chromosome, spindle and nuclear-envelope changes at each stage.
Distinguish mitosis (nuclear division) from cytokinesis (division of the cytoplasm).

Concepts and principles

DNA is replicated during S phase of interphase before mitosis; interphase prepares the cell but is not itself a mitotic stage.
In metaphase, duplicated chromosomes align at the metaphase plate and attach to spindle microtubules from opposite poles.
In anaphase, sister chromatids separate and move to opposite poles; telophase rebuilds nuclei, and cytokinesis separates the cell.

Try this investigation

Move through the simulation once to see its full interphase-to-cytokinesis sequence.
Replay it and pause at each stage; record chromosome position, spindle state and whether a nuclear envelope is visible.
At metaphase, locate the equatorial plane; at anaphase, follow the separated sister chromatids toward opposite poles.
Build a cause-and-effect sequence explaining why DNA replication must occur before chromatid separation.

Expected observations and explanations

Chromosomes condense during prophase, making the duplicated structures easier to move accurately.
Metaphase alignment precedes chromatid separation, helping each new nucleus receive one copy of every chromosome.
Chromosomes decondense and nuclear envelopes re-form in telophase; cytokinesis completes physical cell separation.

Assessment questions and answers

At which stage do sister chromatids separate, and what moves them?: Answer: They separate during anaphase and are moved toward opposite poles by the spindle apparatus.
Why is interphase shown in the sequence even though it is not a stage of mitosis?: Answer: Interphase prepares the cell and includes DNA replication, producing the duplicated chromosomes that mitosis later separates.