Textbook Question
What is the anticodon on tRNA for each of the following codons in an mRNA?
a. GUG
Ch.17 Nucleic Acids and Protein Synthesis
Timberlake14th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9781292472249
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Table of contents
- Ch.1 Chemistry in Our Lives19
- Ch.2 Chemistry and Measurements80
- Ch.3 Matter and Energy53
- Ch.4 Atoms and Elements58
- Ch.5 Nuclear Chemistry42
- Ch.6 Ionic and Molecular Compounds57
- Ch.7 Chemical Quantities and Reactions38
- Ch.8 Gases30
- Ch.9 Solutions50
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- Ch.11 Introduction to Organic Chemistry: Hydrocarbons77
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- Ch.14 Carboxylic Acids, Esters, Amines, and Amides91
- Ch.15 Lipids61
- Ch.16 Amino Acids, Proteins, and Enzymes84
- Ch.17 Nucleic Acids and Protein Synthesis86
- Ch.18 Metabolic Pathways and ATP Production73
Timberlake14th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9781292472249Not the one you use?Change textbook
Chapter 17, Problem 115a
What is the anticodon on tRNA for each of the following codons in an mRNA?
a. AGC
Verified step by step guidance1
Identify the codon provided in the mRNA sequence. In this case, the codon is AGC.
Recall that codons in mRNA are complementary to the anticodons on tRNA. The base-pairing rules are: Adenine (A) pairs with Uracil (U), Guanine (G) pairs with Cytosine (C), and Cytosine (C) pairs with Guanine (G).
Using the base-pairing rules, determine the complementary anticodon for the mRNA codon AGC. The anticodon will be UCG.
Understand that the anticodon UCG on the tRNA will pair with the codon AGC on the mRNA during translation to ensure the correct amino acid is added to the growing polypeptide chain.
Verify your result by double-checking the base-pairing and ensuring the anticodon matches the codon in a complementary manner.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Codons and Anticodons
Codons are sequences of three nucleotides in mRNA that specify a particular amino acid during protein synthesis. Each codon corresponds to a specific amino acid or a stop signal. Anticodons are complementary sequences found on tRNA molecules that pair with the codons on mRNA, ensuring the correct amino acid is added to the growing polypeptide chain.
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Types of RNA Concept 2
Base Pairing Rules
Base pairing rules dictate how nucleotides pair with each other in DNA and RNA. In RNA, adenine (A) pairs with uracil (U), and cytosine (C) pairs with guanine (G). Understanding these rules is essential for determining the anticodon, as the tRNA must have a sequence that is complementary to the mRNA codon.
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2:01Base Pairing Concept 2
tRNA Function in Translation
Transfer RNA (tRNA) plays a crucial role in the translation phase of protein synthesis. Each tRNA molecule carries a specific amino acid and has an anticodon that matches the corresponding codon on the mRNA. This matching process ensures that the correct amino acids are incorporated into the polypeptide chain, facilitating the synthesis of proteins based on the genetic code.
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Related Practice
Textbook Question
What is the amino acid for each of the following codons?
a. CAA
Textbook Question
Endorphins are polypeptides that reduce pain. What is the amino acid order for the endorphin leucine enkephalin (leu-enkephalin), which has the following mRNA?
AUG UAC GGU GGA UUU CUA UAA
Textbook Question
What are the possible codons for each of the following amino acids?
b. arginine
Textbook Question
Endorphins are polypeptides that reduce pain. What is the amino acid order for the endorphin methionine enkephalin (met-enkephalin), which has the following mRNA?
AUG UAC GGU GGA UUU AUG UAA
Textbook Question
What are the possible codons for each of the following amino acids?
a. threonine