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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 95a
17장, 문제 95a

Identify the base and sugar in each of the following nucleosides:
a. deoxythymidine

검증된 단계별 안내
1
Understand the structure of a nucleoside: A nucleoside consists of a nitrogenous base attached to a sugar molecule. The sugar can be either ribose (in RNA) or deoxyribose (in DNA).
Identify the sugar in deoxythymidine: The prefix 'deoxy-' indicates that the sugar is deoxyribose, which is a modified form of ribose lacking an oxygen atom at the 2' position.
Identify the base in deoxythymidine: The name 'thymidine' refers to the nitrogenous base thymine, which is a pyrimidine base commonly found in DNA.
Combine the base and sugar: Deoxythymidine is composed of the thymine base attached to the deoxyribose sugar via a glycosidic bond.
Verify the context: Ensure that the nucleoside is part of DNA, as indicated by the presence of deoxyribose and thymine, which are specific to DNA.

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주요 개념

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Nucleosides

Nucleosides are organic molecules that consist of a nitrogenous base attached to a sugar molecule. They are the building blocks of nucleotides, which are essential for forming DNA and RNA. In nucleosides, the sugar can be either ribose (in RNA) or deoxyribose (in DNA), and the nitrogenous base can be adenine, guanine, cytosine, or thymine.
추천 영상:
가이드 코스
1:21
Naming Nucleosides and Nucleotides Concept 2

Deoxythymidine

Deoxythymidine is a specific nucleoside that consists of the nitrogenous base thymine attached to a deoxyribose sugar. It is a component of DNA, where it pairs with adenine during DNA replication. Understanding its structure is crucial for identifying the base and sugar in nucleosides.
추천 영상:
가이드 코스
1:53
Naming Nucleosides and Nucleotides Example

Nitrogenous Bases

Nitrogenous bases are the fundamental components of nucleotides and nucleosides, categorized into purines (adenine and guanine) and pyrimidines (cytosine and thymine). These bases are responsible for the genetic coding in DNA and RNA, as they form specific pairs (A-T and C-G in DNA) that dictate the sequence of genetic information.
추천 영상:
가이드 코스
1:23
Nitrogenous Bases Example 3
관련 실천
교과서 질문

Identify each of the following bases as a pyrimidine or a purine:

a. cytosine

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교과서 질문

Identify the base and sugar in each of the following nucleotides:

b. dAMP

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교과서 질문

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.

d. What effect, if any, might this mutation have on the structure and/or function of the resulting protein?

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교과서 질문

Identify the base and sugar in each of the following nucleotides:

d. UMP

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교과서 질문

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.

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교과서 질문

Identify the base and sugar in each of the following nucleosides:

c. cytidine

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