Question

what are the main differences between rna and dna? select all that apply.
rna contains sulfate groups instead of phosphate groups.
rna has a nitrogenous base called uracil instead of thymine.
the 5 - carbon sugar in rna is ribose instead of deoxyribose.
rna is usually single - stranded, not double - stranded.

Explanation:

• RNA has ribose - phosphate backbone (not sulfate), so the first option is incorrect.
• RNA contains uracil (\(U\)) instead of thymine (\(T\)) which is present in DNA.
• The 5 - carbon sugar in RNA is ribose, while in DNA it is deoxyribose.
• RNA is usually single - stranded, while DNA is double - stranded.

Answer:

• B. RNA has a nitrogenous base called uracil instead of thymine.
• C. The 5 - carbon sugar in RNA is ribose instead of deoxyribose.
• D. RNA is usually single - stranded, not double - stranded.