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Contained herein are questions that were difficult or answered incorrectly during revision (especially those highlighted in red). This page does not cover all aspects of the specification so this is to be used in conjunction with other resources. One should choose a particular topic or paper and click on the toggle (small arrow) to reveal the question; there will be a further toggle to reveal the answer below the question. All questions from the topic-specific papers are taken from PMT, likewise questions from full papers are taken from OCR papers. Should there be any issue with regard to a missing or incorrect answer, the question numbers directly correspond to the question number in the paper itself ie. Question 7(b)(ii) will actually be question 7(b)(ii) from the paper. One can then cross-check with the paper from PMT or OCR with ease.
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2.3 - Nucleotides and Nucleic Acids
2.6 - Cell Division and Differentiation
5.1 - Communication and Homeostasis
4.1 - Communicable Diseases (1)