Explain the amino–imino forms of cytosine and adenine ?

Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN:9781305251052
Author:Michael Cummings
Publisher:Michael Cummings
Chapter9: Gene Expression And Gene Regulation
Section: Chapter Questions
Problem 15QP
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Explain the amino–imino forms of cytosine and adenine ?

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Step 1 Introduction

Watson and Crick showed a mechanism for the spontaneous occurrence of transitions. Some of the hydrogen atoms on each of the four bases had the ability to change their location in order to produce a tautomer.

An amino group (-NH2) can tautomerize to form an imino form (═NH).

Keto–enol tautomerization is a another classical area of study in the branch of organic chemistry.

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