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  1. GCSE
  3. Biology OCR
  5. 1.2 What happens in cells (and what do cells need)?

1.2 What happens in cells (and what do cells need)?

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Revise OCR GCSE Biology 1.2 What happens in cells (and what do cells need)? with the worksheets, question bank, lessons, revision guides, and flashcards.

describe DNA as a polymer. describe DNA as being made up of two strands forming a double helix

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