Concept explainers
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.
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.
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
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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Essential Cell Biology (Fourth Edition)
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