GCSE BIOLOGY 846
Chamberlain College Of Nursing
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Exam (elaborations)
GCSE BIOLOGY 8461/2H
Question Answers Extra information Mark AO / 
Spec. Ref. 
01.1 chromosome(s) allow chromatid(s) / gene(s) / 
allele(s) 
1 AO1 
4.6.1.4 
01.2 sugar allow deoxyribose 
allow pentose 
do not accept ribose 
1 AO1 
4.6.1.5 
01.3 base(s) allow nitrogenous base(s) 
allow adenine and cytosine and 
guanine and thymine 
1 AO1 
4.6.1.5 
01.4 
 all four required for the mark 
1 AO3 
4.6.1.5 
MARK SCHEME – GCSE BIOLOGY – 8461/2H – JUNE 2021 
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Question Answers Extra information Mark AO / 
Spec. Ref...