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Which of the following codons codes for the amino acid leucine?
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Indice
- 1. A Review of General Chemistry6h 57m
- Orgo 1: Pre-Course Review25m
- What is Organic Chemistry?10m
- Atomic Structure24m
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- Sigma and Pi Bonds19m
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- Formal Charges11m
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- Cahn-Ingold-Prelog Nomenclature1h 2m
- Types of Stereoisomers18m
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- Isometric Relationships22m
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- Optical Activity5m
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- Non-Carbon Chiral Centers8m
- 6. Thermodynamics and Kinetics1h 43m
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- General Mechanism – Addition Reaction9m
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- 29. Amino Acids4h 16m
- Proteins and Amino Acids19m
- L and D Amino Acids14m
- Polar Amino Acids14m
- Amino Acid Chart1h 14m
- Acid-Base Properties of Amino Acids33m
- Isoelectric Point14m
- Amino Acid Synthesis: HVZ Method12m
- Synthesis of Amino Acids: Acetamidomalonic Ester Synthesis16m
- Synthesis of Amino Acids: N-Phthalimidomalonic Ester Synthesis13m
- Synthesis of Amino Acids: Strecker Synthesis13m
- Reactions of Amino Acids: Esterification7m
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- 30. Peptides and Proteins2h 42m
- Peptides12m
- Primary Protein Structure4m
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- Intro to Peptide Sequencing2m
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- Peptide Sequencing: Edman Degradation28m
- Merrifield Solid-Phase Peptide Synthesis18m
- 31. Catalysis in Organic Reactions1h 30m
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- Intro to Citric Acid Cycle7m
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- The Citric Acid Cycle35m
- 34. Nucleic Acids1h 32m
- 35. Transition Metals6h 14m
- Electron Configuration of Elements45m
- Coordination Complexes20m
- Ligands24m
- Electron Counting10m
- The 18 and 16 Electron Rule13m
- Cross-Coupling General Reactions40m
- Heck Reaction40m
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- Buchwald-Hartwig Amination Reaction19m
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- Catalytic Allylic Alkylation18m
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- 36. Synthetic Polymers1h 49m
- Introduction to Polymers6m
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- Step-Growth Polymers11m
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- Step-Growth Polymers: Polyurethane Mechanism10m
- Step-Growth Polymers: Epoxy Resin8m
- Polymers Structure and Properties8m
29. Amino Acids
Amino Acid Chart
Scelta multipla
Which of the following is not one of the 21 standard amino acids found in proteins?
A
Selenocysteine
B
Pyrrolysine
C
Ornithine
D
Histidine
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Guida verificata passo dopo passo1
Understand that the question is asking about the 21 standard amino acids that are incorporated into proteins during translation.
Recall that the 21 standard amino acids include the 20 common amino acids plus selenocysteine, which is sometimes referred to as the 21st amino acid.
Recognize that pyrrolysine is also considered a 22nd amino acid in some organisms, but it is not universally found in all proteins.
Identify that ornithine is not one of the standard amino acids incorporated into proteins. It is an intermediate in the urea cycle and not used in protein synthesis.
Histidine is one of the 21 standard amino acids, so it is not the correct answer to the question.
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