There are several key differences between DNA and RNA, the two main types of nucleic acid. Identify the statement below that correctly describes a difference between RNA and DNA.(1 point)

Question

Responses

DNA uses ribose while RNA uses deoxyribose as the sugar in the molecule’s backbone.
DNA uses ribose while RNA uses deoxyribose as the sugar in the molecule’s backbone.

Adenine binds with the nitrogen base thymine in DNA while it binds with uracil in RNA.
Adenine binds with the nitrogen base thymine in DNA while it binds with uracil in RNA.

DNA is a single-stranded molecule whereas RNA is a double-stranded molecule in cells.
DNA is a single-stranded molecule whereas RNA is a double-stranded molecule in cells.

DNA uses phosphate groups to link nucleotides together whereas RNA uses ketone groups.

Answer 1

The correct statement that describes a difference between RNA and DNA is:

Adenine binds with the nitrogen base thymine in DNA while it binds with uracil in RNA.

The other statements are incorrect:

• DNA uses deoxyribose as the sugar in its backbone, while RNA uses ribose.
• DNA is a double-stranded molecule, whereas RNA is typically single-stranded.
• Both DNA and RNA use phosphate groups to link nucleotides together; there are no ketone groups involved in this process.