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
- Genetic Cloning
  9m
- Methods for Analyzing DNA
  9m
19. Cancer Genetics29m
- Overview of Cancer
  21m
- Cancer Mutations
  7m
20. Quantitative Genetics1h 26m
21. Population Genetics50m
- Hardy Weinberg
  19m
- Allelic Frequency Changes
  31m
22. Evolutionary Genetics29m

11. Translation

Transfer RNA

Genetics

11. Translation

Transfer RNA

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Multiple Choice

Which two different molecules bind to the two opposite ends of a tRNA molecule?

A transcription factor and a ribosomal subunit

An amino acid and a codon on mRNA

A release factor and a promoter

A ribosome and DNA polymerase

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Verified step by step guidance

Step 1: Understand the structure of a tRNA molecule. A tRNA has two important functional ends: one end binds to a specific amino acid, and the other end contains an anticodon that pairs with a codon on the mRNA.

Step 2: Recall that the amino acid attachment site is at the 3' end of the tRNA, where the amino acid is covalently linked by an enzyme called aminoacyl-tRNA synthetase.

Step 3: Recognize that the anticodon loop on the opposite end of the tRNA contains a sequence of three nucleotides that base-pairs with the complementary codon on the mRNA during translation.

Step 4: Eliminate incorrect options by matching the molecules to the tRNA ends: transcription factors, ribosomal subunits, release factors, promoters, ribosomes, and DNA polymerase do not directly bind to the two opposite ends of tRNA.

Step 5: Conclude that the two different molecules binding to the two opposite ends of a tRNA molecule are an amino acid (at the 3' end) and a codon on mRNA (via the anticodon loop).