Question

Which of the following is NOT a difference between RNA and DNA?

a) RNA is generally shorter than DNA
b) RNA is usually single-stranded whereas DNA is double-stranded
c) RNA contains ribose whereas DNA contains deoxyribose
d) RNA contains uracil whereas DNA contains thymine
e) Choose this answer if all of the above are differences

Answer 1

All the listed options (a-d) correctly identify differences between RNA and DNA, thus the answer indicating all choices are correct differences is the right one.

Step-by-step explanation:

The question asks which of the following is NOT a difference between RNA and DNA:

• RNA is generally shorter than DNA.
• RNA is usually single-stranded whereas DNA is double-stranded.
• RNA contains ribose whereas DNA contains deoxyribose.
• RNA contains uracil whereas DNA contains thymine.
• Choose this answer if all of the above are differences.

All the options listed (a through d) are indeed differences between RNA and DNA, thus making choice e ('Choose this answer if all of the above are differences') correct. It's important to note that RNA does indeed contain sugars; specifically, RNA has a backbone made of ribose sugar units connected by phosphodiester linkages. This contradicts the incorrect statement that RNA does not contain sugars. Therefore, we can conclude that the differences outlined in options a, b, c, and d are correct descriptions of how RNA differs from DNA.