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

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Question 6

The diagram shows the order of bases in one strand of DNA.

C−T−A−G−C−A−T \text{C} - \text{T} - \text{A} - \text{G} - \text{C} - \text{A} - \text{T} C−T−A−G−C−A−T

What is the base sequence of the complementary strand of DNA?

A

G A T C G T A\text{G A T C G T A}G A T C G T A

B

G A T G C A T\text{G A T G C A T}G A T G C A T

C

C T A G C A T\text{C T A G C A T}C T A G C A T

D

A G C T A C G\text{A G C T A C G}A G C T A C G

Markscheme

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)?

72 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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