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Ch.26 Nucleic Acids and Protein Synthesis
McMurry - Fundamentals of General, Organic, and Biological Chemistry 8th Edition
McMurry8th EditionFundamentals of General, Organic, and Biological ChemistryISBN: 9780134015187당신이 사용하는 게 아니라요?교과서 변경
모든 교과서McMurry 8th EditionCh.26 Nucleic Acids and Protein Synthesis문제 20
26장, 문제 20

What amino acid sequence is coded for by the mRNA base sequence CUC-AUU-CCA-UGC-GAC-GUA?

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Identify the codons in the mRNA sequence. Each codon consists of three bases. The given sequence is already divided into codons: CUC, AUU, CCA, UGC, GAC, and GUA.
Use the genetic code table to determine the amino acid corresponding to each codon. For example, CUC codes for leucine (Leu), AUU codes for isoleucine (Ile), and so on.
Translate each codon into its corresponding amino acid using the genetic code: CUC -> Leu, AUU -> Ile, CCA -> Pro, UGC -> Cys, GAC -> Asp, GUA -> Val.
Write the amino acid sequence in the correct order as determined by the codons in the mRNA sequence.
Ensure that the sequence is written using the standard three-letter abbreviations for amino acids: Leu-Ile-Pro-Cys-Asp-Val.

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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 messenger RNA (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 a given mRNA sequence.
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가이드 코스
1:42
Introduction to Translation Concept 1

Codons and Amino Acids

Codons are triplet sequences of nucleotides in mRNA that specify particular amino acids during protein synthesis. The genetic code is universal, meaning that the same codons correspond to the same amino acids across different organisms. Familiarity with the genetic code table is essential for translating mRNA sequences into their corresponding amino acid sequences.
추천 영상:
가이드 코스
3:03
Amino Acid Catabolism: Amino Group Example 2

Amino Acid Properties

Amino acids are the building blocks of proteins, each with unique properties that influence protein structure and function. There are 20 standard amino acids, and their sequence determines the protein's characteristics. Understanding the properties of these amino acids helps in predicting how the resulting protein will behave in biological systems.
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가이드 코스
3:03
Amino Acid Catabolism: Amino Group Example 2
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교과서 질문

Identify the amino acid for which the codon GAG codes, and what other codon could encode for this same amino acid?

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교과서 질문

What amino acids do the following sequences code for?

a. AUC

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교과서 질문

Gln-His-Pro-Gly is the sequence of a molecule known as progenitor thyrotropin-releasing hormone (pro-TRH). If we were searching for pro-TRH genes, we would need to know what sequence of bases in DNA we should be looking for. Use the following boxes to indicate answers to parts (a)–(d).

a. What RNA sequence could code for these four amino acids?

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교과서 질문

Copy the following simplified drawing of a DNA replication fork:

a. On the drawing, indicate the direction of synthesis of the new strand labeled A and the location of DNA polymerase on the strand.

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교과서 질문

List possible codon sequences for the following amino acids.

a. Val

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교과서 질문

Copy the diagram and use dotted lines to indicate where hydrogen bonding occurs between the complementary strands of DNA. What is the sequence of each strand of DNA drawn (remember that the sequence is written from the 5′ to 3′ end)?

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