Now that we have the hydroxyl group on this side attached to this C, now if we add the DNA polymerase in step six, it can begin the synthesis and elongation and the replication of this complementary DNA molecule. And after step six, we have the double stranded C DNA molecule that we spoke about in this step. And this cDNA molecule, double stranded cDNA molecule can now be modified by attaching Cohesive ends, sticky ends to both sides of that DNA molecule. And once we attach the sticky ends, we can place it into the appropriate vector, either a plasmid, or we can stick it into a lambda phage. And then we can expose the lambda phage to bacterial cells. Those bacterial cells will take up those double stranded cDNA molecules, and they can use them to basically transcribe.