Pearson Edexcel GCSE (9-1) Combined Science practice

Unofficial practice material Explain why ribosomal RNA (rRNA) was chosen as a key molecule for genetic analysis in reclassifying life into three domains. [3 marks]

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Natural selection and genetic modification

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Unofficial practice material Explain why ribosomal RNA (rRNA) was chosen as a key molecule for genetic analysis in reclassifying life into three domains. [3 marks].

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Unofficial practice material Explain why ribosomal RNA (rRNA) was chosen as a key molecule for genetic analysis in reclassifying life into three domains. [3 marks]

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