IB Biology: A1.2-Differences between DNA and RNA

By Herbert Asiedu-Mante

Multiple Choice

Which nitrogenous base is found in RNA but not in DNA?

• Adenine

• Thymine

• Uracil

• Cytosine

Multiple Choice

Which of the following is a functional difference between DNA and RNA?

• DNA serves mainly as the permanent storage of genetic information, while RNA plays roles in protein synthesis.

• RNA contains instructions for cell division, while DNA functions only in metabolism.

• DNA and RNA are functionally identical but differ structurally.

• RNA is more stable than DNA and therefore better suited for long-term storage.

Multiple Choice

Which of the following correctly identifies the sugar present in RNA?

• Deoxyribose

• Ribose

• Glucose

• Fructose

Multiple Choice

A structural difference between DNA and RNA is that DNA usually exists as a ______, while RNA usually exists as a ______.

• single strand; double strand

• triple helix; single strand

• double strand; single strand

• double strand; double strand

Multiple Choice

Which of the following statements is TRUE about DNA and RNA?

• Both DNA and RNA contain thymine.

• DNA contains ribose, while RNA contains deoxyribose.

• DNA is generally confined to the nucleus, while RNA can move to the cytoplasm.

• RNA stores genetic information long term, while DNA is more transient.