Chromosomes, genes and proteins — practice question

One strand of a DNA molecule contains the base sequence shown below. A-A-T-C-T-G Which base sequence would be found on the complementary strand?

• AA-A-T-C-T-G
• BC-C-G-A-G-T
• CG-G-C-T-C-A
• DT-T-A-G-A-C