1. Fill in the blanks This molecule is a purine This molecule is part of the sugar-phosphate backbone This bond is broken during replication This molecule is a sugar

Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
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**1. Fill in the blanks**

- This molecule is a purine
- This molecule is part of the sugar-phosphate backbone
- This bond is broken during replication
- This molecule is a sugar

The image includes a diagram of the DNA double helix structure. The diagram highlights the following features:

- **A**: Points to one of the nitrogenous bases in the helix, which could represent either adenine (A) or guanine (G), both of which are purines.
- **B, C, D, E**: Indicate different parts of the DNA structure. Typically, labels in DNA diagrams could refer to:
  - Part of a nucleotide (such as a sugar or phosphate group).
  - Specific hydrogen bonds between complementary bases, which are disrupted during DNA replication.

The diagram illustrates the base pairing rules and the double helix's sugar-phosphate backbone.
Transcribed Image Text:**1. Fill in the blanks** - This molecule is a purine - This molecule is part of the sugar-phosphate backbone - This bond is broken during replication - This molecule is a sugar The image includes a diagram of the DNA double helix structure. The diagram highlights the following features: - **A**: Points to one of the nitrogenous bases in the helix, which could represent either adenine (A) or guanine (G), both of which are purines. - **B, C, D, E**: Indicate different parts of the DNA structure. Typically, labels in DNA diagrams could refer to: - Part of a nucleotide (such as a sugar or phosphate group). - Specific hydrogen bonds between complementary bases, which are disrupted during DNA replication. The diagram illustrates the base pairing rules and the double helix's sugar-phosphate backbone.
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