Domanda del libro di testo
Suppose a mutation occurs in the DNA section in problem 17.89, and the first base in the parent chain, adenine, is replaced by guanine.
a. What type of mutation has occurred?
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Ch.17 Nucleic Acids and Protein Synthesis
Timberlake13th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9780134421353
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TOC.tableOfContents
- Ch.1 Chemistry in Our Lives11
- Ch.2 Chemistry and Measurements80
- Ch.3 Matter and Energy54
- Ch.4 Atoms and Elements51
- Ch.5 Nuclear Chemistry42
- Ch.6 Ionic and Molecular Compounds57
- Ch.7 Chemical Quantities and Reactions41
- Ch.8 Gases29
- Ch.9 Solutions51
- Ch.10 Acids and Bases and Equilibrium65
- Ch.11 Introduction to Organic Chemistry: Hydrocarbons78
- Ch.12 Alcohols, Thiols, Ethers, Aldehydes, and Ketones83
- Ch.13 Carbohydrates54
- Ch.14 Carboxylic Acids, Esters, Amines, and Amides90
- Ch.15 Lipids61
- Ch.16 Amino Acids, Proteins, and Enzymes84
- Ch.17 Nucleic Acids and Protein Synthesis83
- Ch.18 Metabolic Pathways and ATP Production67
Timberlake13th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9780134421353Non è quello che usi tu?Cambia libro di testo
Capitolo 17, Problema 89c
Answer the following questions for the given section of DNA:
c. Write the three-letter symbols for the amino acids that would go into the peptide from the mRNA you wrote in part b.
Guida verificata passo dopo passo1
Identify the DNA sequence provided in the problem and determine the complementary mRNA sequence by replacing thymine (T) with uracil (U) and pairing adenine (A) with uracil (U), cytosine (C) with guanine (G), guanine (G) with cytosine (C), and thymine (T) with adenine (A).
Divide the mRNA sequence into codons, which are groups of three nucleotides. Each codon corresponds to a specific amino acid.
Use the genetic code chart to translate each mRNA codon into its corresponding amino acid. For example, the codon AUG codes for methionine (Met), and UUU codes for phenylalanine (Phe).
Write the three-letter symbols for the amino acids in the order they appear based on the mRNA sequence. Ensure the sequence is accurate and matches the codons derived from the mRNA.
Verify the peptide sequence by cross-checking the codons and their corresponding amino acids using the genetic code chart to ensure no errors in translation.
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mRNA Translation
mRNA translation is the process by which ribosomes synthesize proteins using the information encoded in messenger RNA (mRNA). The mRNA sequence is read in sets of three nucleotides, known as codons, each of which corresponds to a specific amino acid. Understanding this process is crucial for determining the amino acid sequence of a peptide based on the mRNA provided.
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Percorso guidato
1:42
Introduction to Translation Concept 1
Amino Acid Codons
Amino acids are the building blocks of proteins, and each amino acid is represented by a specific three-letter codon in the genetic code. There are 20 standard amino acids, and the codons are derived from the nucleotide sequence of mRNA. Familiarity with the codon table is essential for translating mRNA sequences into their corresponding amino acids accurately.
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3:03Amino Acid Catabolism: Amino Group Example 2
Peptide Formation
Peptide formation occurs when amino acids are linked together by peptide bonds during translation, resulting in a polypeptide chain that eventually folds into a functional protein. The sequence of amino acids in a peptide is determined by the mRNA sequence, making it important to correctly interpret the mRNA to predict the resulting peptide structure and function.
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3:07Peptides Concept 1
Pratica correlata
Domanda del libro di testo
Suppose a mutation occurs in the DNA section in problem 17.89, and the first base in the parent chain, adenine, is replaced by guanine.
b. Using the new strand that results from this mutation, write the order of bases in the altered mRNA.
632
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Domanda del libro di testo
Answer the following questions for the given section of DNA:
b. Using the new strand as a template, write the mRNA sequence.
529
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Domanda del libro di testo
Suppose a mutation occurs in the DNA section in problem 17.89, and the first base in the parent chain, adenine, is replaced by guanine.
c. Write the three-letter symbols for the amino acids that would go into the peptide from the mRNA you wrote in part b.
698
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Domanda del libro di testo
Answer the following questions for the given section of DNA:
a. Complete the bases in the parent and new strands.
574
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Domanda del libro di testo
The following is a segment of the template strand of human BRCA1 gene:
TGG AAT TAT CTG CTC TTC GCG
c. If there is a point mutation in the fourth nucleotide triplet and A replaces G, what is the change, if any, in the amino acid sequence?
580
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