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Molecular Biology Visualization of DNA


 

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http://www.FreeScienceLectures... '>http://www.FreeScienceLectures... First the DNA Wrapping is animated. The wrapping allows 6 feet of the long DNA molecule to be densely packed into the tiny nucleus of every cell. The process starts when DNA is wrapped around special protein molecules called histones. The combined loop of DNA and protein is called a nuclei zone. Next the nuclei zones are packed into a thread. The end result is fiber known as chromatin. This fiber is looped and coiled yet again leading to the familiar shapes known as chromosomes which can be seen in the nucleus of dividing cells. Chromosomes are not always present - they form around the time cells divide when the two copies of the cell's DNA need to be separated. Using computer animation based on molecular research we are now able to see how DNA is actually copied in living cells. An assembly line of amazing biochemical machines are pulling apart the DNA double helix and cranking out a copy of each strand. This presentation was made by Drew Barry at The Walter and Eliza Hall Institute of Medical Research. --- It's Never too Late to Study: http://www.FreeScienceLectures... '>http://www.FreeScienceLectures... --- Notice: This video is copyright by its respectful owners. The website address on the video does not mean anything. ---

Channel: Howto & Style
Uploaded: November 30, 1999 at 12:00 am
Author: FreeScienceLectures

Length: 03:16
Rating: 4.99
Views: 45672

Tags: cell  chromatin  chromosome  dna  double  helix  histone  molecules  nuclei  nucleus  protein  replication  wrapping  zone  

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Video Comments

ReagentRhodan (November 30, 1999 at 12:00 am)
i have information from a well respected person inside the nanotechnology and molecular science community that this will lead to immortality :P
dinmagic (November 30, 1999 at 12:00 am)
so complex
LeniInChains (November 30, 1999 at 12:00 am)
yes.. it scared the hell out of me but fascinated me incredibly at the same time
inthefade (November 30, 1999 at 12:00 am)
This is absolutely incredible. I've been looking for a video like this for a while, as I had only stumbled upon them in the context of creationist videos.
covidiu (November 30, 1999 at 12:00 am)
That DNA replication thing is amazing. It looks and works like a robot, but it's just a bunch of proteins...
wonderlasting (November 30, 1999 at 12:00 am)
Thank you so much for this amazing video. I'm a big visual learner and this helped out a great deal.
sarevor (November 30, 1999 at 12:00 am)
This is absolutely incredible
jfl187 (November 30, 1999 at 12:00 am)
that last part blew my mind. is this really how dna is replicated? somones seen it? really look like that? or is it just an animation to get the idea of how it works?
lcfr2004 (November 30, 1999 at 12:00 am)
This is great stuff and it is very helpful for me right now because I have a microbiology final tomorrow where I have to explain DNA replication in detail. Thanks FSL and keep up the good work. :)
Jasmiiniriisi (November 30, 1999 at 12:00 am)
Very interesting video. What are those green thingies in DNA copying process?

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