Consider translation of the following mRNA sequence:
5′-...AUGCAGAUCCAUGCCUAUUGA...-3′
Diagram translation at the moment the fourth amino acid is added to the polypeptide chain. Show the ribosome; label its A, P, and E sites; show its direction of movement; and indicate the position and anticodon triplet sequence of tRNAs that are currently interacting with mRNA codons.
Table of contents
- 1. Introduction to Genetics51m
- 2. Mendel's Laws of Inheritance3h 37m
- 3. Extensions to Mendelian Inheritance2h 41m
- 4. Genetic Mapping and Linkage2h 28m
- 5. Genetics of Bacteria and Viruses1h 21m
- 6. Chromosomal Variation1h 48m
- 7. DNA and Chromosome Structure56m
- 8. DNA Replication1h 10m
- 9. Mitosis and Meiosis1h 34m
- 10. Transcription1h 0m
- 11. Translation58m
- 12. Gene Regulation in Prokaryotes1h 19m
- 13. Gene Regulation in Eukaryotes44m
- 14. Genetic Control of Development44m
- 15. Genomes and Genomics1h 50m
- 16. Transposable Elements47m
- 17. Mutation, Repair, and Recombination1h 6m
- 18. Molecular Genetic Tools19m
- 19. Cancer Genetics29m
- 20. Quantitative Genetics1h 26m
- 21. Population Genetics50m
- 22. Evolutionary Genetics29m
11. Translation
Transfer RNA
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following enzymes is responsible for attaching amino acids onto the tRNA?
A
tRNA attachases
B
Aminoacyl-tRNA synthetases
C
Aminoacyl-tRNA attachases
D
tRNA lysases

1
Understand the role of tRNA in protein synthesis: tRNA molecules are responsible for bringing amino acids to the ribosome during translation.
Learn about the structure of tRNA: Each tRNA has an anticodon region that pairs with the mRNA codon and an acceptor stem where the amino acid is attached.
Identify the enzyme responsible for attaching amino acids to tRNA: This process is known as 'charging' the tRNA, and the enzyme involved is aminoacyl-tRNA synthetase.
Explore the specificity of aminoacyl-tRNA synthetases: Each aminoacyl-tRNA synthetase is specific to one amino acid and its corresponding tRNA, ensuring accurate translation.
Review the options given in the problem: Recognize that 'aminoacyl-tRNA synthetases' is the correct term for the enzyme that attaches amino acids to tRNA, as opposed to the other incorrect options listed.
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