A-LevelBiologyThe mitotic cell cycleOct/Nov 2018Paper 1 Q211 Mark
Which changes in a group of mammalian cells, dividing by mitosis, would be necessary for the formation of a tumour? 1 Mitosis is no longer inhibited by cell to cell contact. 2 Cells acquire the ability to migrate and set up new colonies. 3 Cells become able to divide indefinitely.
A1 and 2
B1 and 3
C1 only
D2 and 3
✓ Correct Answer
The correct answer is B. This question tests the candidate's understanding of the mitotic cell cycle within the Biologysyllabus. The examiner's mark scheme requires...
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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