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D1.2.2—Hydrogen bonding in transcription Topic Practice

D1.2.2—Hydrogen bonding in transcription Topic Practice
IB Biology syllabusBiology SL/HLFirst assessment 2025

Practise deriving mRNA or DNA strand sequences from given bases, using direction, antisense or sense strand information and base pairing rules.

How this is tested

  • calculate the mRNA sequence from a DNA template using A-U and G-C pairing
  • distinguish sense and antisense strands when matching DNA and mRNA sequences
  • interpret 3' and 5' direction in multiple-choice transcription sequence questions
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