During DNA replication, special enzymes move up along the DNA ladder, unzipping the molecule as it moves along. New nucleotides move in to each side of the unzipped ladder. The bases on these ...

The replication fork is more than just a means ... it is difficult to keep upright without stepping on the ground. If you don't step on the ground, you may fall down. Similarly, stalled forks ...

To manufacture protein molecules, a cell must first transfer information from DNA to mRNA through the process ... of translation is complete. The next step in translation, called elongation ...