Videos

Transcription and Translation

Added Mar 18, 2014 •

Copy this URL:
Embed code:	<iframe class="edlio-embed-player" type="text/html" width="640" height="360" src="//vmhs.mcisd.net/apps/embed/?v=51721" frameborder="0" allowfullscreen></iframe> Change dimensions

Show Transcript

the innermost workings of how a simple code is turned into flesh and blood this is what Francis call the central dogma of Modern Biology how DNA makes protein it starts set bundle of factors assembling at the start of a gene it's these that trigger the first phase of the process  reading off the information would be needed to make the protein  the gene is the length of DNA stretching away to the left everything's ready to roll 3 to 1 the blue molecule racing along the DNA is reading the gene  it's unzipping the double helix and one of the two strands  the yellow chain sneaking out of the top is it do you have the genetic message and it's made of a close chemical cousin of DNA called RNA  the building blocks to make the RNA enter through an intake hole they are match to the DNA letter by letter to make an exact copy of the A's G S & T's of the gene  the only difference is that in the RNA copy the letter T is replaced what's a closely related nucleic acid known as you you're watching this process called transcription in real time it's happening right now in almost every cell in your body when the Brian a copy is complete its snakes away from the nucleus and into the outer part of the South  Bannon Muslim display of choreography all the components of another molecular machine lock together around the RNA to form a miniature Factory called Microsoft 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 each of the 20 amino acids they all carry a specific three letter code that will be read by the machine now we come to the heart of the process inside the ribosome the RNA is pulled like a tape  the code for each amino acid is red off three letters at a time and matched to three corresponding Shutters on the transfer molecule when the right transfer molecule plugs in the amino acid it is added to the growing protein chain  again you are watching this in real time  and for a few seconds the assembled protein starts to emerge from the ribosome  ribosomes can make any kind of protein just depends what genetic message you feed in on the RNA  in this case the end-product is hemoglobin sounds in our bone marrow turn out a hundred trillion molecules of it

Uploaded by Olivia Guerra.

Videos

Transcription and Translation

More videos from Olivia Guerra