We have one of the strands shown in blue and the second parent strand is shown with this brown color. Now, what basically happens is our groups of proteins including our helicase, binds to the point of origin. Let's suppose in this location and one of the newly synthesized single stranded DNA molecules is synthesized in this direction and the other DNA molecule, the other single stranded DNA molecule, the daughter strand is synthesized in the opposite direction. And the fact that DNA replication takes place on both strands and in opposite directions is known as a bidirectional process. So this makes it a bidirectional process. So DNA replication is both semiconservative and it's a bidirectional process.