Understanding Nucleic Acids

What is the primary role of DNA in cells?

• To catalyze biochemical reactions

• To transport molecules across cell membranes

• To provide energy for cellular processes

• To store and transmit genetic information

Which process involves copying the DNA sequence into RNA?

• Mutation

• Replication

• Transcription

• Translation

What are the three components of a nucleotide?

• A protein, a phosphate, and a nitrogen base

• A sugar, a lipid, and a nitrogen base

• A sugar, a phosphate, and a nitrogen base

• A sugar, a phosphate, and a lipid

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

• Guanine

• Uracil

• Adenine

• Thymine

What structural feature is characteristic of DNA?

• Double helix

• Single-stranded helix

• Quadruple helix

• Triple helix