PEARSON (PEARSON) • Edexcel A Level Biology
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Modules Edexcel A Level Biology at PEARSON (PEARSON)
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Latest notes & summaries PEARSON (PEARSON) • Edexcel A Level Biology
Edexcel A Level Biology Paper 2 Mark Scheme June 2022: GCE In Biology B (9BI0/02) Paper 2: Advanced Physiology, Evolution and Ecology. 
The only correct answer is: 
D phosphodiester 
A is incorrect as this bond is found in lipids 
B is incorrect as this bond is found in carbohydrates 
C is incorrect as this bond pair bonds nucleotides (1) 
Question 
Number Answer Additional Guidance Mark 
1(b) A description that makes reference to the following points: 
• {DNA polymerase} {joins the sugar phos...
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Edexcel A Level Biology Paper 2 Mark Scheme June 2022: GCE In Biology B (9BI0/02) Paper 2: Advanced Physiology, Evolution and Ecology. 
The only correct answer is: 
D phosphodiester 
A is incorrect as this bond is found in lipids 
B is incorrect as this bond is found in carbohydrates 
C is incorrect as this bond pair bonds nucleotides (1) 
Question 
Number Answer Additional Guidance Mark 
1(b) A description that makes reference to the following points: 
• {DNA polymerase} {joins the sugar phos...