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

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Question 19

A laboratory sample contains a short section of DNA. One strand reads C A T G\text{C}\ \text{A}\ \text{T}\ \text{G}C A T G.

Give the sequence of the other strand, in the corresponding order, and explain how the bases in the two strands are matched.

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

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

184 exam-style questions on OCR GCSE Biology 1.2 What happens in cells (and what do cells need)?, covering 1.2.1 Structure of DNA, 1.2.2 Nucleotides and complementary bases, 1.2.3 Protein synthesis, 1.2.4 DNA structure and the proteins made, 1.2.5 Investigating enzymatic reactions, and 1.2.6 Mechanism of enzyme action. Each one has a worked solution and a mark scheme showing where the marks go.

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