Figure 27.43. Chemical Mutagenesis.

Figure 27.43Chemical Mutagenesis

Treatment of DNA with nitrous acid results in the conversion of adenine into hypoxanthine. Hypoxanthine pairs with cytosine, inducing a transition from A-T to G-C.

From: Section 27.6, Mutations Involve Changes in the Base Sequence of DNA

Cover of Biochemistry
Biochemistry. 5th edition.
Berg JM, Tymoczko JL, Stryer L.
New York: W H Freeman; 2002.
Copyright © 2002, W. H. Freeman and Company.

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