Lesson 5.4 · Cell Cycle Control
Thirty questions on the one lesson in this unit that is almost entirely about consequences. Tap an answer and it moves on by itself — correct answers advance immediately, misses hold a few seconds so you can read why.
Click the buttons and watch what changes.
A checkpoint is where the cell decides whether to go on. If the control (like p53) fails, damaged cells keep dividing.
Part 1Why a cell divides — and why a healthy one stopsPart 2The three checkpoints and what each one screens forPart 3What goes wrong when a checkpoint failsPart 4p53 — working, and mutatedPart 5Cancer is the cell cycle with nothing left to stop itPart 6Mutations: what they are, and which ones get inherited