Chapter 10, Problem 1SQ

A molecule of DNA contains two polymer strands called ______, made by bonding together many monomers called _____.

Summary Introduction

To explain:

The composition of the molecule of $\text{DNA}$ containing two polymer strands and molecule that is formed by bonding together many monomers.

Introduction:

$\text{DNA}$ is double strand structure made up of alternating purine and pyrimidine nucleotides. These nucleotides are joined together by hydrogen bonds. They also contain sugar molecules joined together to the nucleotides by a phosphate group.

Answer to Problem 1SQ

Correct Answer:

A molecule contains two polymer strands called polynucleotides, made by bonding together many monomers called nucleotides.

Explanation of Solution

$\text{DNA}$ molecule is called as deoxyribose nucleic acid. It consists of many nucleotides joined together to form a complete strand. The nucleotides are made up of purines and pyrimidines. The purines are namely adenine and guanine. The pyrimidines are namely cytosine and thymine. They are joined together by hydrogen bonds to form the complete double strand of $\text{DNA}$.

Conclusion

$\text{DNA}$ is a double helix structure which consists of purine and pyrimidine nucleotides joined together by hydrogen bonds. These nucleotides form a polymer called as polynucleotides.