Organic Chemistry (8th Edition)
Organic Chemistry (8th Edition)
8th Edition
ISBN: 9780134042282
Author: Paula Yurkanis Bruice
Publisher: PEARSON
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Chapter 26, Problem 36P
Interpretation Introduction

Interpretation:

5-Bromouracil causes mutations in DNA.  Reason for this should be determined.

Concept introduction:

A parent DNA molecule consists of two poly nucleotide chains held together by bonds between complementary nitrogen bases.

A base is nitrogen containing heterocyclic compound which is found in DNA and RNA.

There are mainly five nitrogen bases.

  1. (1) Adenine
  2. (2) Guanine
  3. (3) Cytosine
  4. (4) Thymine
  5. (5) Uracil

In DNA Adenine always makes a double bond with Thymine (A=T) and cytosine always makes triple bond with guanine (GC)

Enol is a tautomer which exhibiting a special type of functional isomerism namely tautomerism.

Tautomerism is a special type of functional isomerism in which isomers are in dynamic equilibrium with each other.

Mutation is the process that results in change in the sequence of the DNA, and the compound which causes mutation is known as mutagenic compound.

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26. This compound is L-glyceraldehyde. Draw a stereochemically correct representation of C-1 and C-2 of D-glucose. CHO | HO—C—H | CH2OH 27. Categorize each of the following as an aldose, a ketose, or neither. 28. Define each in 20 words or less: (a) anomeric carbon; (b) enantiomers; (c) furanose and pyranose; (d) glycoside; (e) aldose and ketose. 29. A) Draw the structure of any aldohexose in the pyranose ring form. B) Draw the structure of the anomer of the aldohexose you drew above. C) How many asymmetric carbons (chiral centers) does each of these structures have? D) How many stereoisomers of the aldohexoses you drew are theoretically possible? 30. A) Define "reducing sugar." (b) Sucrose is a disaccharide composed of glucose and fructose (Glc(1 → 2)Fru). Explain why sucrose is not a reducing sugar, even though both glucose and fructose are.

Chapter 26 Solutions

Organic Chemistry (8th Edition)

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