Chapter 21, Problem 21.109AQAP

Interpretation Introduction

(a)

Interpretation:

Deoxy thymidine:

It is a pyrimidine deoxynucleoside which pairs with adenine in double stranded DNA. It consists of thymine and deoxyribose sugar.

Concept introduction:

Thymine combined with deoxyribose to form the nucleoside deoxythymidine which is the same as thymidine.

To determine: The base and sugar in deoxythymidine

Interpretation Introduction

(b)

Interpretation:

Adenosine is both a chemical found in many living systems and a medication. It plays a key role in regulation of blood flow to various organs through vasodilation.

Concept introduction:

Adenine combined with ribose to form adenosine. It is generally found in nature and play an important role in biochemical process.

To determine: The base and sugar in adenosine

Interpretation Introduction

(c)

Interpretation:

Cytidine is a nucleoside that is composed of the base cytosine linked to the five carbon sugar D-ribose. It is a component of RNA with molecular mass $243.217g$ and chemical formula $C_9{H}_{13}{N}_3{O}_5$.

Concept introduction:

Cytosine combines with ribose ring to form cytidine. It is a component of RNA.

To determine: The base and sugar in cytidine.

Interpretation Introduction

(d)

Interpretation:

Deoxyguanosine is very similar to guano sine with one hydroxyl group removed from the $2\text{'}$ position of the ribose sugar.

The structure of deoxyguanosine is

Concept introduction:

Guanine combines with deoxyribose sugar to form deoxyguanosine.

To determine: The base and sugar in deoxyguanosine.