The first part of this video shows how long strands of DNA are packaged in eukaryotic cells. It's pretty good. The second part is a demonstrating of how the replisome works. The replisome is a little molecular machine that copies DNA. The animation doesn't do a very good job of conveying the idea that the various components of the replisome interact with each other to form a compact blob at the replication fork.
The concept of a "molecular machine" was promoted by Bruce Alberts who worked on DNA replication. It gets the IDiots all in a tizzy whenever we talk about molecular machines. They think we're advocating intelligent design!
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