Question

what is one way that rna differs from dna?
it is single - stranded.
it has no nucleus.
it forms a double helix.
it is not soluble in water.

Explanation:

DNA is double - stranded while RNA is typically single - stranded. Nucleic acids like DNA and RNA don't have nuclei themselves. DNA forms a double helix, not RNA. Both DNA and RNA are water - soluble.

Answer:

It is single - stranded.