A drug stops the cell cycle at the end of the first stage, just after the DNA has been copied. Which event will this drug prevent?
The nucleus of the cell dividing to form two nuclei
The DNA of each chromosome being copied once
The cell making more mitochondria and ribosomes
The cell increasing in size before it can divide
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.