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Ch.17 Nucleic Acids and Protein Synthesis
Timberlake - Chemistry: An Introduction to General, Organic, and Biological Chemistry 14th Edition
Timberlake14th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9781292472249당신이 사용하는 게 아니라요?교과서 변경
모든 교과서Timberlake 14th EditionCh.17 Nucleic Acids and Protein Synthesis문제 65a
17장, 문제 65a

Consider the following segment of mRNA produced by the normal order of DNA nucleotides:
ACA UCA CGG GUA
a. What is the amino acid order produced from this mRNA?

검증된 단계별 안내
1
Identify the codons in the given mRNA sequence. A codon is a sequence of three nucleotides. For the given mRNA sequence 'ACA UCA CGG GUA', the codons are: ACA, UCA, CGG, and GUA.
Use the genetic code table to determine the amino acid corresponding to each codon. For example, ACA corresponds to threonine (Thr), UCA corresponds to serine (Ser), CGG corresponds to arginine (Arg), and GUA corresponds to valine (Val).
Write the amino acid sequence in the order determined by the codons. The sequence will be Thr-Ser-Arg-Val.
Ensure that the sequence is written in the correct N-terminus to C-terminus direction, as this is the standard convention for representing amino acid sequences.
Double-check the codon-to-amino acid translation using the genetic code table to ensure accuracy in the amino acid sequence.

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주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

mRNA Translation

mRNA translation is the process by which ribosomes synthesize proteins based on the sequence of nucleotides in mRNA. Each set of three nucleotides, known as a codon, corresponds to a specific amino acid. Understanding this process is crucial for determining the amino acid sequence encoded by the mRNA.
추천 영상:
가이드 코스
1:42
Introduction to Translation Concept 1

Codons and Amino Acids

Codons are sequences of three nucleotides in mRNA that specify a particular amino acid during protein synthesis. The genetic code, which is universal among most organisms, maps each codon to its corresponding amino acid. For example, the codon 'ACA' codes for threonine, while 'UCA' codes for serine.
추천 영상:
가이드 코스
3:03
Amino Acid Catabolism: Amino Group Example 2

Genetic Code

The genetic code is a set of rules that defines how sequences of nucleotides in DNA and RNA are translated into proteins. It consists of 64 codons that encode 20 amino acids, along with start and stop signals for protein synthesis. Familiarity with the genetic code is essential for interpreting mRNA sequences and predicting the resulting amino acid chains.
추천 영상:
가이드 코스
03:25
The Genetic Code Concept 1
관련 실천
교과서 질문

Consider the following segment of mRNA produced by the normal order of DNA nucleotides:

ACA UCA CGG GUA

b. What is the amino acid order if a point mutation changes UCA to ACA?

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교과서 질문

Consider the following segment of mRNA produced by the normal order of DNA nucleotides:

ACA UCA CGG GUA

e. What is the amino acid order if an insertion mutation adds a G to the beginning of the mRNA segment?

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교과서 질문

Consider the following segment of mRNA produced by the normal order of DNA nucleotides:

ACA UCA CGG GUA

f. What is the amino acid order if a deletion mutation removes the A at the beginning of the mRNA segment?

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교과서 질문

What is the effect of a deletion mutation on the amino acid sequence of a polypeptide?

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How is protein synthesis affected if the normal base sequence TTT in the DNA template strand is changed to TTC?

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교과서 질문

The following is a segment of the DNA template that codes for human insulin: TTT GTG AAC CAA CAC CTG 

b. Write the three-letter and one-letter abbreviations for this corresponding peptide segment.

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