Question

the diagram above shows a strand of dna. the structures labeled y in figure above are ribose sugars. phosphates. nitrogen bases. deoxyribose sugars.

Explanation:

• DNA is composed of nucleotides. Each nucleotide has three components: a phosphate group, a deoxyribose sugar, and a nitrogen - containing base.
• In the given diagram, the structures labeled \(Y\) are the nitrogen - containing bases (such as adenine (\(A\)), thymine (\(T\)), cytosine (\(C\)), and guanine (\(G\))).
• Ribose sugar is part of RNA, not DNA. Deoxyribose sugar (\(Z\) in the diagram) is the sugar in DNA. Phosphates are the circular - shaped components (\(X\) in the diagram).

Answer:

nitrogen bases.