DNA and RNA: Similarities and Differences

Which nitrogenous bases are found in both DNA and RNA?

• Adenine, Thymine, Guanine

• Adenine, Cytosine, Guanine

• Thymine, Cytosine, Uracil

• Adenine, Uracil, Guanine

What is a key structural difference between DNA and RNA?

• DNA contains uracil, RNA contains thymine

• DNA contains ribose sugar, RNA contains deoxyribose sugar

• DNA is single-stranded, RNA is double-stranded

• DNA is double-stranded, RNA is single-stranded

Which sugar is found in RNA?

• Ribose

• Deoxyribose

• Glucose

• Fructose

What role does RNA play in protein synthesis?

• Destroys faulty proteins

• Replicates DNA

• Acts as a messenger between DNA and ribosomes

• Stores genetic information

During DNA transcription, adenine pairs with which base in RNA?

• Uracil

• Guanine

• Thymine

• Cytosine