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 8 Question Answers Extra information Mark AO / Spec. Ref. 01.5 replication 1 AO3 4.6.1.5 4.1.2.2 01.6 protein allow
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