Biochemistry
Biochemistry
9th Edition
ISBN: 9781319114671
Author: Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher: W. H. Freeman
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Concept explainers

DNA and RNA
Deoxyribonucleic acid (DNA) is usually called the blueprint of life. Deoxyribose is a monosaccharide that has a key function in the synthesis of deoxyribonucleic acid. One less oxygen-containing hydroxyl group occurs in deoxyribose sugar. Nucleic acid, d…
DNA as the Genetic Material
DNA, or deoxyribonucleic acid, is a long polymeric nucleic acid molecule discovered in the late 1930s. It is a polymer; a long chain-like molecule made up of several monomers connected in a sequence. It possesses certain characteristics that qualify it a…
Genetics
The significant branch in science which involves the study of genes, gene variations, and the organism's heredity is known as genetics. It is also used to study the involvement of a gene or set of genes in the health of an individual and how it prevents …
DNA Replication
The mechanism by which deoxyribonucleic acid (DNA) is capable of producing an exact copy of its own is defined as DNA replication. The DNA molecules utilize a semiconservative method for replication.
Question

If a DNA double helix is 23% guanine, it's also _____ % cytosine, ____ % adenine, and ____ % thymine.

Expert Solution
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Introduction: 

  • The base-pairing rule of DNA is known as Chargraff's rule, which was discovered by American scientist Erwin Chargraff in the year 1947.
  • According to the rule, Adenine (A) pairs only with thymine (T), and guanine (G) pairs with cytosine (C) only. 
  • He also stated that the composition of DNA will vary in different organisms, in particular with the relative amounts of A, T, G, and C bases. But the ratio will be the same in different tissue of the same organism. 

 

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