Question

which base is found only in rna?
ribose
thymine
uracil
deoxyribose

Explanation:

• Ribose is a sugar, not a base.
• Thymine is found in DNA, not RNA.
• Uracil is a base that is unique to RNA. In DNA, thymine is present instead.
• Deoxyribose is a sugar, not a base.

Answer:

uracil