An embryo develops from one fertilised egg cell into tissues containing many different cell types.
Which statement explains how this happens?
Mitosis increases cell number; differentiation produces specialised cells.
Mitosis increases cell size; differentiation produces additional cells.
Mitosis produces specialised cells; differentiation replicates their chromosomes.
Mitosis changes chromosome number; differentiation restores diploid nuclei.
42 exam-style questions on Edexcel GCSE Biology 2.1 Cell division and growth, covering 2.1.1 Mitosis and the cell cycle, 2.1.2 Division producing identical daughter cells, 2.1.3 Cancer and uncontrolled cell division, 2.1.4 Growth in animals and plants, 2.1.5 Importance of cell differentiation, and 2.1.6 Percentile charts to monitor growth. Each one has a worked solution and a mark scheme showing where the marks go.