Question

which sugar is present in the nucleic acid that is represented in the diagram?
uracil
thymine
deoxyribose
ribose

Explanation:

The presence of uracil (U) indicates that the nucleic - acid is RNA. RNA contains ribose sugar. DNA, on the other hand, contains deoxyribose sugar. Thymine is present in DNA and not in the nucleic - acid shown here. Uracil is a nitrogenous base, not a sugar.

Answer:

D. ribose