Proteins — practice question

Which row shows the two nucleotide pairs produced during transcription?

• Afirst base pair: AU (2 hydrogen bonds); second base pair: CG (2 hydrogen bonds)
• Bfirst base pair: AU (2 hydrogen bonds); second base pair: CG (3 hydrogen bonds)
• Cfirst base pair: AU (2 hydrogen bonds); second base pair: TU (2 hydrogen bonds)
• Dfirst base pair: AU (3 hydrogen bonds); second base pair: CG (2 hydrogen bonds)