DNA and RNA — Prelims Questions

Which of the following statements correctly describes the chemical difference between deoxyribose and ribose sugars found in nucleic acids?

If a double-stranded DNA molecule contains 20% Guanine (G), what is the percentage of Adenine (A) in the same molecule?

Which type of bond is responsible for linking the sugar and phosphate components to form the backbone of a nucleic acid strand?

Which of the following statements about RNA is INCORRECT?

How many hydrogen bonds are present between a DNA segment with the sequence 5'-GATCC-3' and its complementary strand?

Which of the following is NOT a component of a nucleoside?