Table of contents

1. Introduction to Biology2h 42m
2. Chemistry3h 37m
3. Water1h 26m
4. Biomolecules2h 23m
5. Cell Components2h 26m
6. The Membrane2h 31m
7. Energy and Metabolism2h 0m
8. Respiration2h 40m
9. Photosynthesis2h 49m
10. Cell Signaling59m
11. Cell Division2h 47m
12. Meiosis2h 0m
13. Mendelian Genetics4h 44m
14. DNA Synthesis2h 27m
15. Gene Expression3h 6m
16. Regulation of Expression3h 31m
17. Viruses37m
- Viruses
  37m
18. Biotechnology2h 58m
19. Genomics17m
- Genomes
  17m
20. Development1h 5m
21. Evolution3h 1m
22. Evolution of Populations3h 53m
23. Speciation1h 37m
24. History of Life on Earth2h 6m
25. Phylogeny2h 31m
26. Prokaryotes4h 59m
27. Protists1h 12m
28. Plants1h 22m
29. Fungi36m
- Fungi
  19m
- Fungi Reproduction
  17m
30. Overview of Animals34m
- Overview of Animals
  34m
31. Invertebrates1h 2m
32. Vertebrates50m
33. Plant Anatomy1h 3m
34. Vascular Plant Transport1h 2m
- Water Potential
  1h 2m
35. Soil37m
- Soil and Nutrients
  20m
- Nitrogen Fixation
  16m
36. Plant Reproduction47m
- Flowers
  33m
- Seeds
  14m
37. Plant Sensation and Response1h 9m
38. Animal Form and Function1h 19m
39. Digestive System1h 10m
- Digestion
  1h 3m
- Blood Sugar Homeostasis
  7m
40. Circulatory System1h 49m
41. Immune System1h 12m
42. Osmoregulation and Excretion50m
- Osmoregulation and Excretion
  50m
43. Endocrine System1h 4m
- Endocrine System
  1h 4m
44. Animal Reproduction1h 2m
- Animal Reproduction
  1h 2m
45. Nervous System1h 55m
- Neurons and Action Potentials
  1h 8m
- Central and Peripheral Nervous System
  46m
46. Sensory Systems46m
- Sensory System
  46m
47. Muscle Systems23m
- Musculoskeletal System
  23m
48. Ecology3h 11m
49. Animal Behavior28m
- Animal Behavior
  28m
50. Population Ecology3h 41m
51. Community Ecology2h 46m
52. Ecosystems2h 36m
53. Conservation Biology24m
- Conservation Biology
  24m

15. Gene Expression

Introduction to Types of RNA

General Biology

15. Gene Expression

Introduction to Types of RNA

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0:48 minutes

Problem 3

Textbook Question

The anticodon of a particular tRNA molecule is
a. Complementary to the corresponding mRNA codon
b. Complementary to the corresponding triplet in rRNA
c. The part of tRNA that bonds to a specific amino acid
d. Catalytic, making the tRNA a ribozyme

Verified step by step guidance

Understand the role of tRNA in protein synthesis: tRNA molecules are responsible for bringing amino acids to the ribosome during translation, matching them with the correct mRNA codons.

Identify the structure of tRNA: tRNA has an anticodon region that is crucial for its function. This anticodon is a sequence of three nucleotides.

Recognize the relationship between anticodon and mRNA codon: The anticodon of tRNA is complementary to the mRNA codon, meaning it pairs with the mRNA sequence during translation.

Clarify the function of the anticodon: The anticodon ensures that the correct amino acid is added to the growing polypeptide chain by matching with the mRNA codon.

Evaluate the options given in the problem: Based on the understanding of tRNA and its anticodon, determine which option correctly describes the anticodon as complementary to the mRNA codon.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Anticodon

An anticodon is a sequence of three nucleotides in a tRNA molecule that is complementary to a specific mRNA codon. During translation, the anticodon pairs with the mRNA codon, ensuring that the correct amino acid is added to the growing polypeptide chain. This base pairing is crucial for the fidelity of protein synthesis.

mRNA Codon

An mRNA codon is a sequence of three nucleotides on messenger RNA that corresponds to a specific amino acid or a stop signal during protein synthesis. Codons are read by the ribosome in the 5' to 3' direction, and each codon matches with a complementary anticodon on tRNA, facilitating the translation of genetic information into proteins.

tRNA Function

Transfer RNA (tRNA) is a type of RNA molecule that helps decode mRNA sequences into proteins. It carries specific amino acids to the ribosome, where its anticodon pairs with the mRNA codon, allowing the ribosome to add the correct amino acid to the growing polypeptide chain. tRNA is essential for translating genetic information into functional proteins.

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Related Practice

Multiple Choice

Which type of RNA carries amino acids to the ribosome used in polypeptide creation?

The function of tRNA during protein synthesis is to __________.

The bonds that hold tRNA molecules in the correct three-dimensional shape are __________.

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Multiple Choice

Which statement regarding the structure and function of tRNA is false?

Transfer RNA (tRNA)

a. Carries monosaccharides to the ribosome for synthesis

b. Is made of messenger RNA

c. Has an anticodon region that is complementary to the mRNA codon

d. Is the site of protein synthesis

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Textbook Question

A particular triplet of bases in the coding sequence of DNA is TGA. The anticodon on the tRNA that binds to the mRNA codon is ________.

a. TGA

b. UGA

c. UCU

d. ACU

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Textbook Question

The nucleotide sequence of a DNA codon is GTA. A messenger RNA molecule with a complementary codon is transcribed from the DNA. In the process of protein synthesis, a transfer RNA pairs with the mRNA codon. What is the nucleotide sequence of the tRNA anticodon?

a. CAT

b. CUT

c. GUA

d. CAU

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Textbook Question

Complete the following table:

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