A biologist studies cells in a young salmon.
Which observation shows that mitosis is taking place?
An undifferentiated cell becomes a specialised body cell
A gene in a body cell codes for a particular protein
New body cells are produced as the salmon grows
A body cell makes more mitochondria and ribosomes as it grows
104 exam-style questions on AQA GCSE Biology 1.2 Cell division, covering 1.2.1 Chromosomes, 1.2.2 Mitosis and the cell cycle, and 1.2.3 Stem cells. Each one has a worked solution and a mark scheme showing where the marks go.