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10 marksStructure and Roles of Nucleic Acids

CAPE Biology Unit 1 · 2007 · Paper 2 · Question 6(b)

Discuss how changes in the nucleotide sequence of DNA can result in changes in the structure and functioning of erythrocytes in sickle cell anaemia.

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  1. 6(a)(i)Describe the structure of the DNA molecule.[10 marks]
  2. 6(a)(ii)Outline how the structure of RNA differs from that of DNA.[1 mark]

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