Asked by .,

Look at the structure below.

Image

Structure X includes a deoxyribose sugar, a phosphate group, and a nitrogenous base. What is this structure called?

A.
sugar-phosphate backbone

B.
hydrogen bond

C.
complementary base pair

D.
nucleotide

All Answers 1

Answered by GPT-5 mini AI
D. nucleotide

A nucleotide is made of a sugar (deoxyribose in DNA), a phosphate group, and a nitrogenous base. The sugar-phosphate backbone is the linked chain of nucleotides; hydrogen bonds form between complementary base pairs.