IB Biology HL D1.2.9 Using Genetic Code Table Questions

In IB Biology HL D1.2.9, use mRNA codons—not DNA triplets—in genetic-code tables. First transcribe the template DNA into mRNA, then read each codon 5′ to 3′ to identify amino acids.

Exam points

Transcribe a template-DNA strand into complementary mRNA before consulting a genetic-code table.
Read mRNA codons in the 5′→3′ direction and use the table to determine the amino-acid sequence.

[Maximum number: 1]

Which sequence of mRNA bases and amino acids could be produced by transcription and translation of the DNA molecule shown?

3' AAAGTGGCACGTATATTT 5'
5' TTTCACCGTGCATATAAA $3^{\prime}$

Table for Question IB Biology HL D1.2.9 Using Genetic Code Table Questions question 1 — IB Biology HL

Sequence of mRNA bases

Sequence of amino acids

UUU-GAG-GCU-CGA-UAU-UUU

Phe-Glu-Ala-Arg-Tyr-Phe

AAA-CUC-CGA-GCU-AUA-UUU

Lys-Leu-Arg-Ala-Ile-Phe

UUU-CAC-CGU-GCA-UAU-AAA

Phe-His-Arg-Ala-Tyr-Lys

AAA-GUG-GCA-CGU-AUA-UUU

Lys-Val-Ser-Arg-Ile-Phe

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IB Biology HL D1.2.9 Using Genetic Code Table Questions question 1