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Mitosis and the cell cycle

Step through DNA replication, chromosome alignment, separation and the production of two daughter cells.

Simulation
Mitosis and the cell cycle: G1 · before replication2n = 4 · 4 DNA moleculesLong + short chromosomes · blue/coral parental origins

Investigate and explain

  1. Pause at S/G2 and count chromosomes separately from chromatids.
  2. Compare metaphase with anaphase. Track one colour to both poles.
  3. Draw the two daughter cells and justify their chromosome number.

Practice · question 1/3

What separates during mitotic anaphase?

Choose once, then discuss your reasoning.

First attempts: 0/0

Assignment and explanation guide

Write a claim, support it with two observations from this activity, and explain one model limitation. Compare with a partner. A strong answer names the structures or processes, controls relevant variables and distinguishes the illustration from biological evidence.