Question

Select the correct option:

Adenosine, guanosine, thymidine, uridine, cytidine are all ____but adenylic acid, guanylic acid, uridylic acid, cytidylic acid are ____

• A. nucleotides, nucleosides
• B. nucleosides, nucleotides
• C. nucleotides, nucleic acids
• D. nucleosides, nucleic acids

Answer 1

The correct option is B nucleosides, nucleotides

A nucleoside is made up of a nitrogenous base and sugar for example for the nitrogenous base adenosine, the nucleoside is the adenosine and the nucleotide is the adenylic acid.

The nucleotide is made up of nitrogenous bases, sugar and phosphoric acids.

So, the correct option is 'nucleosides, nucleotides'