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:

A nucleotide has three components: a phosphate group, a five - carbon sugar (deoxyribose in DNA), and a nitrogen - containing base.

• Label A: The phosphate group is represented by the chemical structure with phosphorus (P) and oxygen (O) atoms.
• Label B: The five - carbon sugar (deoxyribose) is the five - membered ring structure.
• Label C: The nitrogen - containing base is the heterocyclic aromatic structure with nitrogen atoms.

Answer:

Label A: Phosphate group
Label B: Deoxyribose (five - carbon sugar)
Label C: Nitrogen - containing base