IB Biology SL D1.2.7 Complementary Base Pairing Questions
Explore how complementary codon–anticodon pairing positions the correct amino acid during translation in IB Biology SL D1.2.7.
- Syllabus
- First assessment 2025
- Course
- Biology SL
- Level
- SL
Exam points
- Explain that each tRNA anticodon pairs with the complementary mRNA codon by hydrogen bonding during translation.
- Use a DNA or mRNA sequence representation to identify the complementary mRNA codon or tRNA anticodon.
- Explain how tRNA specificity and activating enzymes ensure that the correct amino acid is added to the growing polypeptide.
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IB Biology SL D1.2.7 Complementary Base Pairing Questions question 1
[Maximum number: 3]
DNA research, involving biotechnology, has led to benefits for society but has given rise to some controversy.
Outline how translation depends on complementary base pairing.
| a | translation converts a sequence of mRNA nucleotides/codons to a sequence of amino acids/polypeptide/protein |
| b | triplets of nucleotides/bases on activated tRNAs pair with complementary triplets of nucleotides/bases on mRNA / vice versa |
| c | base pairing occurs when adenine/A pairs with uracil/U and guanine/G pairs with cytosine/C |
| d | specific amino acids are attached to specific of tRNA |
| e | mRNA has codons AND tRNA has anticodons |
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