Loading...

DNA Replication Cartoon

369,061 views

Loading...

Loading...

Loading...

Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Published on Jan 7, 2009

Our second cartoon made for our AP Biology class. Comments would be appreciated!

We realize that some of this is hard to understand, so here is the script of the second half:

"Helicases travel to the origin of replication to unwind the DNA, forming a replication fork.

Single strand binding proteins hold the two template strands apart.

On the leading strand, the enzyme primase attaches to the DNA to synthesize and add an RNA primer.

Next, DNA polymerase III adds DNA nucleotides to the RNA primer, but only in the 5 prime to 3 prime direction.

On the leading strand, nucleotides can be added continuously. The process is different for the lagging strand.

First on the lagging strand, primase removes the single strand binding proteins. Then, it forms an RNA primer.

DNA polymerase III adds nucleotides to the 3 prime end of the RNA primer.

These short segments are called okazaki fragments.

As a finishing touch, an enzyme called DNA ligase bonds the okazaki fragments together. This completes the lagging strand."

  • Category

  • Song

  • Artist

  • Licensed to YouTube by

    • SME (on behalf of Sony BMG Music Entertainment); UMPI, CMRRA, UBEM, Sony ATV Publishing, UMPG Publishing, and 23 Music Rights Societies

Loading...

When autoplay is enabled, a suggested video will automatically play next.

Up next


to add this to Watch Later

Add to

Loading playlists...