Chapter 2, Problem 22MIC

Why do think nucleotides are also sometimes referred to as “bases” or “nucleotide bases”? What is the difference between a nucleotide and a nucleoside? Explain by giving an example, using structures. What kind of bond links a base to some sugar? Is the sugar an alpha or beta anomer? In what position(s) of the sugar does this occur? In what position(s) of the base does this occur? Instead of the term “Formation of a nucleoside”, what could the name of the reaction be? What functional group is being formed? Define the primary structure of DNA/RNA. Compare and contrast to the primary structure of proteins.

Which statement is true concerning the nucleotide shown below?   The base is a purine and the sugar is ribose. The base is a pyrimidine and the base is ribose. The base is a pyrimidine and the sugar is deoxyribose. The base is a purine and the sugar is deoxyribose.

Name the bases present in RNA. Which one of these is not present in DNA?

Is the sugar in the nucleotide deoxytibose or ribose? How do you know?

The variable structures of a nucleotide are the sugar and the phosphate group. (a). Say if the statement written above is true or false. (b). Give ONE reason for your answer in part (a).

A DNA molecule contains 28% thymine. What is the % of each purine and of each pyrimidine?

What are the three parts of a nucleotide

What is a nucleotide

Provide a complete name for a nucleotide that consists of thymine, deoxyribose, and three phosphates