The comparison between the major and minor grooves of A-DNA (deoxyribonucleic acid) and B-DNA. Concept introduction: DNA is the genetic material in living beings and consists of two polypeptide chains that run in an antiparallel direction. They are wrapped around each other to form a double helix. The backbone of the polypeptide chain contains deoxyribose sugar with phosphate group, while the nitrogen bases project outside from the backbone. DNA is found to exist in many forms, such as A-DNA, B-DNA, and Z-DNA. B-DNA is the common physiological form of the DNA double helix, while A-DNA is the form that exists only under certain circumstances.

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Chapter 9, Problem 18RE

Interpretation Introduction

Interpretation:

The comparison between the major and minor grooves of A-DNA (deoxyribonucleic acid) and B-DNA.

Concept introduction:

DNA is the genetic material in living beings and consists of two polypeptide chains that run in an antiparallel direction. They are wrapped around each other to form a double helix.

The backbone of the polypeptide chain contains deoxyribose sugar with phosphate group, while the nitrogen bases project outside from the backbone.

DNA is found to exist in many forms, such as A-DNA, B-DNA, and Z-DNA. B-DNA is the common physiological form of the DNA double helix, while A-DNA is the form that exists only under certain circumstances.

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