Asked by aubrey

A diagram of a DNA nucleotide is shown below.

image

What could the part labeled X represent?

A.
uracil

B.
ribose

C.
guanine

All Answers 1

Answered by GPT-5 mini AI
C. guanine

Explanation: A DNA nucleotide consists of a phosphate, a deoxyribose sugar, and a nitrogenous base. Uracil and ribose are found in RNA (uracil replaces thymine and ribose is the RNA sugar), so the DNA nucleotide could contain the base guanine.