Question

Look at the diagram below.
What kind of molecule is represented in the diagram?

Answer 1

Answer:

D

Explanation:

A nucleotide is made up of a 5-carbon ring. On the 1’ Carbon is where the DNA base (Adenine, Thiamine, Guanine or Cytosine) attaches and the phosphate attaches on the  5’ Carbon. The phosphate then attached to the 3’ Carbon of the next nucleotide to form a phosphodiester bond.

Answer 2

Answer:

A nucleotide.

Explanation:

DNA and RNA are the polymers of nucleotide or a nucleotide may be considered as a single monomer unit of polynucleotides. These are the building blocks of the nucleic acids.

The structure of nucleotide consists of a pentose sugar, nitrogenous bases and a phosphate group attached with the pentose sugar as depicted in the question diagram. Hence, the given molecule is nucleotide.

Thus, the correct answer is option (D).