Essential Cell Biology 5e
Essential Cell Biology 5e
5th Edition
ISBN: 9780393691108
Author: Bruce Alberts, Karen Hopkin, Alexander D Johnson, David Morgan, Martin Raff, Keith Roberts, Peter Wa
Publisher: W. W. Norton
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Chapter 5, Problem 9Q
Summary Introduction

To calculate: If the DNA were enlarged, so that its diameter equalled to that of an electrical extension cord (5mm), how long would the extension cord be from one end to the other if it is completely stretched out.

Introduction: Deoxyribonucleic acid (DNA) is the genetic material of many eukaryotic organisms composed of two anti-parallel strands of nucleotides linked together by hydrogen bonds existing between the complementary base pairs. It carries all the necessary information required for the growth and development of the organism. The helix exactly looks like a twisted ladder with 10 to 10.5 base pairs in each turn. Length of a definite part of DNA strand primarily depends on the number of sequence it possesses. The building blocks of DNA, nucleotides are stacked in the helix at an interval of 0.4nm, and the diameter of the strand is about of 2nm.

Summary Introduction

To calculate: If the DNA were enlarged, so that its diameter equalled to that of an electrical extension cord of length 5mm, how close would the bases be to each other.

Introduction: Deoxyribonucleic acid (DNA) is the genetic material of many eukaryotic organisms composed of two anti-parallel strands of nucleotides linked together by hydrogen bonds existing between the complementary base pairs. It carries all the necessary information required for the growth and development of the organism. The helix exactly looks like a twisted ladder with 10 to 10.5 base pairs in each turn. Length of a definite part of DNA strand primarily depends on the number of sequence it possesses. The building blocks of DNA, nucleotides are stacked in the helix at an interval of 0.4nm, and the diameter of the strand is about of 2nm.

Summary Introduction

To calculate: If the DNA is enlarged, so that its diameter equalled to that of an electrical cord from one end to the other, how long would a gene of 1000 nucleotide pairs be.

Introduction: Deoxyribonucleic acid (DNA) is the genetic material of many eukaryotic organisms composed of two anti-parallel strands of nucleotides linked together by hydrogen bonds existing between the complementary base pairs. It carries all the necessary information required for the growth and development of the organism. The helix exactly looks like a twisted ladder with 10 to 10.5 base pairs in each turn. Length of a definite part of DNA strand primarily depends on the number of sequence it possesses. The building blocks of DNA, nucleotides are stacked in the helix at an interval of 0.4nm, and the diameter of the strand is about of 2nm.

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