AQA AS BIOLOGY 7401 Paper 1 Mark scheme June 2021
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AQA AS BIOLOGY 7401/1 Paper 1 Mark scheme June 2021
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---19June 20232022/2023A+
- AQA AS 
BIOLOGY 
7401/1 
Paper 1 
Mark scheme 
June 2021. 100% CORRECT questions, answers, workings and explanations. Whatsapp +25479 093 7672 for assistance.Question Marking Guidance Mark Comments 
01.1 1. Hydrogen (bonds); 
2. Phosphodiester (bonds); 
2 2. Accept 
ester/covalent bond 
Question Marking Guidance Mark Comments 
01.2 Correct answer for 2 marks = 1489/1489.2;; 
Incorrect answer but for 1 mark accept: 
876 
OR 
1861 - 1862 
2 
Question Marking Guidance Mark Comments 
01.3 
1. tRNA i...
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$7.49 More Info
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