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A1.2.10—Conservation of genetic code Topic Practice

A1.2.10—Conservation of genetic code Topic Practice
IB Biology syllabusBiology SL/HLFirst assessment 2025

Practise recognising evidence that the genetic code is mostly conserved across species and applying this to gene transfer questions.

How this is tested

  • explain why transferred human genes can produce the same proteins in yeast or bacteria
  • interpret evidence that mRNA codons correspond to the same amino acids in different species
  • distinguish universal coding evidence from base pairing, DNA replication or genome similarity distractors
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