Zadanie 2c
Outline how mRNA contributes to translation in a eukaryotic cell.
Matching codons with anticodons
Use complementary base pairing to match an mRNA codon with the appropriate tRNA anticodon.
Tę umiejętność sprawdza 7 zadań wzorowanych na arkuszach IB z lat 2022–2026.
Zadania sprawdzające tę umiejętność: 7 Otwórz w wyszukiwarce z filtrami
Zadanie 7
Three mRNA codons for alanine are 5′-GCU-3′, 5′-GCC-3′ and 5′-GCA-3′. Which anticodon could belong to an alanine-carrying tRNA? A. 3′-CGA-5′ B. 3′-GCU-5′ C. 3′-CGT-5′ D. 3′-AAA-5′
Zadanie 6
Which statement accurately describes the production of a polypeptide from an mRNA message? A. RNA polymerase joins amino acids while tRNA codons bind mRNA anticodons B. A ribosome joins nucleotides after matching the mRNA to DNA C. A ribosome supports…
Zadanie 7
Bacterial cells express genetic information, and inherited variation can affect survival during antibiotic treatment. (a) Draw and label a single RNA nucleotide. (b) Explain how RNA enables a polypeptide to be assembled during translation. (c) Outline how…
Zadanie 11
These tRNAs carry the amino acids shown. Which mRNA sequence encodes the tripeptide phenylalanine–glycine–lysine? Anticodon, written 3′→5′ | Amino acid AAG | Phenylalanine CCA | Glycine UUC | Lysine A. 5′–AAG CCA UUC–3′ B. 5′–TTC GGT AAG–3′ C. 5′–UUC GGU…
Zadanie 6
Haemophilia can result from inadequate activity of a blood-clotting protein. (a) Outline how translation produces a polypeptide in a cell. (b) A woman carrying the usual X-linked recessive haemophilia allele has children with a man without that allele.…
Zadanie 10
A DNA template triplet is written 3′–GAC–5′. Which tRNA anticodon pairs with the resulting mRNA codon? All answer triplets are written 3′ to 5′. A. CUG B. GAC C. GUC D. CTG