A student writes: "A gene controls a characteristic." Which ending completes this statement scientifically?
because the gene codes for a whole chromosome
because the gene is copied inside the nucleus
because the gene is one of a pair in a body cell
because the gene codes for a particular protein
63 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.