Now, this is our sequence. So T-A-T GCC tgcct, this is the sequence on the DNA template that we want to build the DNA primer for. And so this above is the DNA primer that we build in a laboratory. But notice what we do with the DNA primer. We modify the sequence of the DNA primer. Now, if we look at this codon here, CTT, this codon would have a complementary sequence, a correct complementary sequence of GAA.