Which statements differentiate dna and rna

DNA is involved only in transcription, and RNA is involved in both transcription and translation. DNA is a double helix, and RNA is a single strand  DNA does not have uracil as a nitrogen base, but RNA does have uracil as a nitrogen base.

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme