Section 1 Self-Check Quiz
Try the first part of the virtual lab. Remember inside the nucleus when the DNA is being copied to make new DNA, the T-A pair up and the C-G pair up. In this instance, you are trying to make mRNA, so the C-G are still pairing up, the T-A pair is still happening (from the DNA to the mRNA) but the A-T pair is changed to a A-U when mRNA is being created