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

Biochemistry
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Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
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Chapter1: Biochemistry: An Evolving Science
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If a DNA double helix is 23% guanine, it's also _____ % cytosine, ____ % adenine, and ____ % thymine.

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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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