Question

dna is composed of repeating structural units called nucleotides.
deoxyribose is the five-carbon sugar found in dna.
in the diagram to the right, identify the three components of a nucleotide.
label a
label b
label c

Explanation:

Identify Label A

Label A points to the phosphate group (\(\text{PO}_4^{3-}\) derivative attached to the \(\text{CH}_2\)).

Identify Label B

Label B points to the five-carbon sugar ring (deoxyribose).

Identify Label C

Label C points to the nitrogenous base (specifically, guanine).

Answer:

In the diagram to the right, identify the three components of a nucleotide.
<blank>Phosphate group</blank> Label A
<blank>Deoxyribose sugar</blank> Label B
<blank>Nitrogenous base</blank> Label C