mRNA Translation (Basic)

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Uploaded by on Mar 22, 2010

Originally created for DNA Interactive ( http://www.dnai.org ).
TRANSCRIPT: When the RNA copy is complete, it snakes out into the outer part of the cell. Then in a dazzling display of choreography, all the components of a molecular machine lock together around the RNA to form a miniature factory called a ribosome. It translates the genetic information in the RNA into a string of amino acids that will become a protein. Special transfer molecules, the green triangles, bring each amino acid to the ribosome. The amino acids are the small red tips attached to the transfer molecules. There are different transfer molecules for each of the twenty amino acids. Each transfer molecule carries a three letter code that is matched with the RNA in the machine. Now we come to the heart of the process. Inside the ribosome, the RNA is pulled through like a tape. The code for each amino acid is read off, three letters at a time, and matched to three corresponding letters on the transfer molecules. When the right transfer molecule plugs in, the amino acid it carries is added to the growing protein chain. Again, you are watching this in real time. And after a few seconds the assembled protein starts to emerge from the ribosome. Ribosomes can make any kind of protein. It just depends what genetic message you feed in on the RNA. In this case, the end product is hemoglobin. The cells in our bone marrow churn out a hundred trillion molecules of it per second! And as a result, our muscles, brain and all the vital organs in our body receive the oxygen they need.

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Uploader Comments (DNALearningCenter)

  • Me gusta. This helped me understand mRNA a LOT better.

  • @blackguysproduction Glad it was of use to you! :)

  • this is a copy of the PBS video...BOOO

    the other voice sounded better and the video qualitiy was much better

  • @sheagalea Sorry you didn't enjoy the voice on the video :(

    Just to clarify, this is not a copy of a PBS video; this video originates from us. PBS has shown our video on their channel before, however.

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All Comments (19)

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  • this shit takes 40 fuking pages to explain in my nicro book lmao

  • really informative and interesting

  • just incredible, how something so complex can be turned into something intuitive and clear is breathtaking, and it has opened my eyes to just how incredible biology can be!

  • no termination? booo

  • a me tambien mi gusta. This helped me under mRNA a LOT LOT better thank you gracias.

  • ooh yeah how bout i stick my nucleic acid on your ribosome and we make some proteins

  • Thanks for the video! I appreciate it

  • These videos are great and are really helping me understand DNA. I like the voice on the video, it is clear and I can hear how some of these words I had never heard of before are pronounced, makes it easier than reading from a book. Thanks :-)

  • Amazing. 

  • damn. this is basic?

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