Domanda del libro di testo
If the sequence T-A-C-C-C-T appears on the informational strand of DNA, what sequence appears opposite it on the template strand? Label your answer with 3′ and 5′ ends.
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Ch.26 Nucleic Acids and Protein Synthesis
McMurry8th EditionFundamentals of General, Organic, and Biological ChemistryISBN: 9780134015187
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TOC.tableOfContents
- Ch.1 Matter and Measurements27
- Ch.2 Atoms and the Periodic Table20
- Ch.3 Ionic Compounds8
- Ch.4 Molecular Compounds23
- Ch.5 Classification & Balancing of Chemical Reactions12
- Ch.6 Chemical Reactions: Mole and Mass Relationships28
- Ch.7 Chemical Reactions: Energy, Rate and Equilibrium64
- Ch.8 Gases, Liquids and Solids24
- Ch.9 Solutions52
- Ch.10 Acids and Bases25
- Ch.11 Nuclear Chemistry22
- Ch.12 Introduction to Organic Chemistry: Alkanes57
- Ch.13 Alkenes, Alkynes, and Aromatic Compounds47
- Ch.14 Some Compounds with Oxygen, Sulfur, or a Halogen50
- Ch.15 Aldehydes and Ketones45
- Ch.16 Amines42
- Ch.17 Carboxylic Acids and Their Derivatives57
- Ch.18 Amino Acids and Proteins82
- Ch.19 Enzymes and Vitamins63
- Ch.20 Carbohydrates44
- Ch.21 The Generation of Biochemical Energy65
- Ch.22 Carbohydrate Metabolism45
- Ch.23 Lipids42
- Ch.24 Lipid Metabolism33
- Ch.25 Protein and Amino Acid Metabolism24
- Ch.26 Nucleic Acids and Protein Synthesis45
McMurry8th EditionFundamentals of General, Organic, and Biological ChemistryISBN: 9780134015187Non è quello che usi tu?Cambia libro di testo
Capitolo 26, Problema 65
What tetrapeptide is synthesized from the informational DNA sequence G-T-C-A-G-T-A-C-G-T-T-A?
Guida verificata passo dopo passo1
Step 1: Understand the problem. The DNA sequence provided (G-T-C-A-G-T-A-C-G-T-T-A) needs to be translated into a tetrapeptide. This involves determining the mRNA sequence, identifying the codons, and then using the genetic code to find the corresponding amino acids.
Step 2: Transcribe the DNA sequence into mRNA. Replace each DNA base with its complementary RNA base: G (guanine) pairs with C (cytosine), T (thymine) pairs with A (adenine), A (adenine) pairs with U (uracil), and C (cytosine) pairs with G (guanine). The resulting mRNA sequence will be C-A-G-U-C-A-U-G-C-A-A-U.
Step 3: Divide the mRNA sequence into codons. Codons are groups of three nucleotides that correspond to specific amino acids. For the mRNA sequence C-A-G-U-C-A-U-G-C-A-A-U, the codons are CAG, UCA, UGC, and AAU.
Step 4: Use the genetic code to determine the amino acid for each codon. Refer to a codon chart to find the amino acids corresponding to CAG, UCA, UGC, and AAU. Each codon will translate to a specific amino acid.
Step 5: Combine the amino acids in the order determined by the codons to form the tetrapeptide. Write the sequence of the tetrapeptide using the standard three-letter or one-letter abbreviations for the amino acids.
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DNA Sequence
A DNA sequence is a series of nucleotides that encode genetic information. Each nucleotide consists of a sugar, a phosphate group, and a nitrogenous base (adenine, thymine, cytosine, or guanine). The specific order of these bases determines the genetic instructions for synthesizing proteins, including peptides.
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1:49
DNA Double Helix Example 1
Transcription and Translation
Transcription is the process by which the DNA sequence is copied into messenger RNA (mRNA), which then undergoes translation to synthesize proteins. During translation, ribosomes read the mRNA sequence in sets of three nucleotides (codons), each corresponding to a specific amino acid, ultimately forming a polypeptide chain.
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6:37Transcription: mRNA Synthesis Concept 1
Tetrapeptide
A tetrapeptide is a peptide composed of four amino acids linked by peptide bonds. The sequence of amino acids in a tetrapeptide is determined by the corresponding mRNA codons, which are derived from the original DNA sequence. Understanding how to translate the DNA sequence into a tetrapeptide involves knowing the genetic code that associates specific codons with their respective amino acids.
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1:24Peptides Example 1
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