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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