A-LevelBiologyNucleic acids and protein synthesisFeb/Mar 2024Paper 1 Q231 Mark
Which statements are correct for all nucleotides? 1 The nitrogen-containing base is always attached to carbon atom 1 of the pentose. 2 The phosphate group is always attached to carbon atom 5 of the pentose. 3 A condensation reaction occurs to join the nitrogen-containing base to the pentose. 4 Nucleotides are linked together by condensation reactions between phosphate groups.
A1, 2 and 3
B1 and 2 only
C1, 3 and 4
D2, 3 and 4
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The correct answer is A. This question tests the candidate's understanding of nucleic acids and protein synthesis within the Biologysyllabus. The examiner's mark scheme requires...
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Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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