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CAIE A-Level Biology 5.1.6 Uncontrolled Division and Tumours

Practise linking accumulated mutations, activated oncogenes and lost tumour-suppressor function to failed cell-cycle control, uncontrolled mitosis and tumour growth.

Syllabus
2028–2030
Course
Biology 9700
Level
AS

Exam points

  • link gene mutation with loss of checkpoints and uncontrolled mitotic cell division
  • distinguish activated oncogenes from inactivated tumour-suppressor genes
  • explain tumour growth through repeated clonal division before considering invasion or spread

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