A lizard's skin is repaired when a diploid cell completes the cell cycle to produce two replacement cells. The copied chromosomes have just been pulled to opposite ends of the cell.
Which statement describes what happens next?
The chromosome copies move back to the middle before the nucleus divides; the cytoplasm then divides, producing two genetically identical cells.
The cytoplasm and cell membrane divide before nuclei form; the DNA is then copied separately inside each of the two cells.
The DNA is copied again at each end before nuclei form; the cytoplasm then divides, producing two genetically different cells.
A nucleus forms around each complete chromosome set; the cytoplasm and cell membrane then divide, producing two genetically identical cells.
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.