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State the properties of the Watson–Crick model of DNA in the following categories: a. number of polynucleotide chains b. polarity (running in same direction or opposite directions) c. bases on interior or exterior of molecule d. sugar/phosphate on interior or exterior of molecule e. which bases pair with which f. right- or left-handed helix

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Human Heredity: Principles and Iss...

11th Edition
Michael Cummings
Publisher: Cengage Learning
ISBN: 9781305251052

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Chapter
Section
BuyFindarrow_forward

Human Heredity: Principles and Iss...

11th Edition
Michael Cummings
Publisher: Cengage Learning
ISBN: 9781305251052
Chapter 8, Problem 14QP
Textbook Problem
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State the properties of the Watson–Crick model of DNA in the following categories:

  1. a. number of polynucleotide chains
  2. b. polarity (running in same direction or opposite directions)
  3. c. bases on interior or exterior of molecule
  4. d. sugar/phosphate on interior or exterior of molecule
  5. e. which bases pair with which
  6. f.        right- or left-handed helix

a.

Summary Introduction

To explain: The properties of the Watson-Crick model of DNA in terms of the number of polynucleotide chains.

Introduction: James Watson and Francis Crick began to work on the structure of DNA in the early 1950s. They followed the existing information about DNA, which was already available. They also focused on X-ray diffraction studies, which helped them to solve the helical structure of DNA.

Explanation of Solution

According to Watson and Crick model of DNA, the double-stranded nature of DNA is relevant for copying and transmitting the genetic information...

b.

Summary Introduction

To explain: The properties of the Watson-Crick model of DNA in terms of polarity (running in the same direction or opposite directions).

Introduction: James Watson and Francis Crick began to work on the structure of DNA in the early 1950s. They followed the existing information about DNA, which was already available. They also focused on X-ray diffraction studies, which helped them to solve the helical structure of DNA.

c.

Summary Introduction

To explain: The properties of the Watson-Crick model of DNA in terms of bases in the interior or on the exterior of the molecule.

Introduction: James Watson and Francis Crick began to work on the structure of DNA in the early 1950s. They followed the existing information about DNA, which was already available. They also focused on X-ray diffraction studies, which helped them to solve the helical structure of DNA.

d.

Summary Introduction

To explain:  The properties of the Watson-Crick model of DNA in terms of sugar/phosphate in the interior or on the exterior of the molecule.

Introduction: James Watson and Francis Crick began to work on the structure of DNA in the early 1950s. They followed the existing information about DNA, which was already available. They also focused on X-ray diffraction studies, which helped them to solve the helical structure of DNA.

e.

Summary Introduction

To explain: The properties of the Watson-Crick model of DNA in terms of base pairing.

Introduction: James Watson and Francis Crick began to work on the structure of DNA in the early 1950s. They followed the existing information about DNA, which was already available. They also focused on X-ray diffraction studies, which helped them to solve the helical structure of DNA.

f.

Summary Introduction

To explain: The properties of the Watson-Crick model of DNA in terms of right- or left-handed helix.

Introduction: James Watson and Francis Crick began to work on the structure of DNA in the early 1950s. They followed the existing information about DNA, which was already available. They also focused on X-ray diffraction studies, which helped them to solve the helical structure of DNA.

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