DNA & mRNA

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  • Transcription and Translation
  • It won't let me add in the images I drew in, I'm just going to link them all into a document which will be linked here.
  • Step 1. The DNA unzips itself
  • https://docs.google.com/a/sau16.org/document/d/1JhDskPNnqFW0nOF1F4M56LbwqPcApkV6kxI-kjTQ1GI/edit?usp=sharing
  • Step 2: mRNA is built as a copy of a gene Step 3: The mRNA then leaves the nucleus
  • By: Kimlie Gillespie Period 2
  • Step 4: The mRNA heads to a ribosome
  • The DNA opens it self up so that one of the helixes can be read to create a mRNA. This is the first step of transcription
  • Step 5: The mRNA is read and a string of amino acids is put together in the ribosome
  • One helix of the DNA strand is read and while it is being read a mRNA is being made. This is the second step of transcription. Then the mRNA leaves the nucleus.
  • Step 6: The string of amino acids is called a protien
  • After the mRNA leaves the nucleus, it needs to find a ribosome so it can be read. This is the first step of translation.
  • In the ribosome, the mRNA is read. The tRNA brings the needed amino acids to the ribosome, then the ribosome  attaches the amino acids to each other according to the mRNA's "recipe". This the second step of translation.
  • Eventually the process for the the creation of the amino acid chain terminates. That string of amino acids that is left is called a protein. *Note if there is an error in the mRNA, the result is that the chain of amino acids will be much shorter and different compared to if it were to be correct chain.
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