Explanation Reason for correct answer: (a) The nucleic acid backbone in DNA is composed of dioxyribose sugar and a phosphate group. The phosphate group and sugar units are alternating in nucleic acid backbone. Therefore, this option is correct. (c) The nitrogenous bases are attached to the sugar in the DNA. The nitrogenous bases present in the DNA are adenine, cytosine, guanine or thymine...

Chemistry for Today: General, Organic, and Biochemistry

9th Edition

ISBN: 9781305960060

Author: Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen

Publisher: Cengage Learning

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Concept explainers

Coding Strand of DNA

When pointing to DNA transcription, the coding strand is found to be the DNA strand whose base sequence is indistinguishable from the base sequence of the RNA transcript developed. It is this strand that comprises the codons, while the non-coding strand …

Nucleotide

Both DNA and RNA are composed of organic molecules known as nucleotides. Hence, nucleotides are known as the basic building blocks of nucleic acids. These substances play a role in various processes such as cell signalling, enzyme reactions, metabolism, …

Structure of Cytosine

Cytosine is among the five primary nitrogenous bases of which DNA and RNA and are being used in storage and transportation of genetic makeup within a cell. Adenine, guanine, thymine as well as uracil are the remaining four nucleobases.

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Question

Chapter 21, Problem 21.70E

Interpretation Introduction

Interpretation:

The components of the nucleotide in a DNA molecule are to be identified.

Concept introduction:

The term DNA stands for deoxyribonucleic acid. This is the most important biomolecule that stores the genetic information of living organisms. In other words, DNA is also known as the blue print of the all organisms.

Expert Solution & Answer

Chapter 21 Solutions

Chemistry for Today: General, Organic, and Biochemistry

Ch. 21 - What is the principal location of DNA within the...Ch. 21 - Which pentose sugar is present in DNA? In RNA?Ch. 21 - Prob. 21.3E Ch. 21 - Prob. 21.4E Ch. 21 - Prob. 21.5E Ch. 21 - Prob. 21.6E Ch. 21 - Prob. 21.7E Ch. 21 - Identify the 3 and 5 ends of the DNA segment...Ch. 21 - Prob. 21.9E Ch. 21 - Prob. 21.10E

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Draw the Lewis diagram for the DNA fragment that is complementary to the guanine-thymine-adenine DNA fragment.
How does the DNA content determine what reactions occur within an organism?

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