Question

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

Explanation:

Step1: Identify the nucleic acid

The diagram shows uracil (U). Uracil is a nitrogen - containing base found in RNA (ribonucleic acid).

Step2: Recall the sugar in RNA

RNA contains ribose sugar. DNA (deoxyribonucleic acid) contains deoxyribose sugar. Uracil and thymine are nitrogen - containing bases, not sugars.

Answer:

ribose