ProteinSynthesis

For this information go to page 300 in our textbook.
 * __Protein Synthesis: Transcription and Translation__**
 * __Transcription__** is the process in which DNA makes mRNA by dividing and matching the bases **__replacing thymine with uracil__**.


 * __Translation__** is the process in which the mRNA travels to the ribosomes in the cell where tRNA matches up with it to form proteins eventually ending with the connection of proteins in a polypeptide chain. Watch the following video to watch protein synthesis occur in a cell.

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Notice how the mRNA is only a single strand coming out of the nucleus unlike DNA which is a double strand in a double helix shape.

The enzyme you see unzipping the DNA and making a new mRNA strand is **__RNA polymerase__**.

Also pay attention to the green strand of amino acids coming out of the ribosome, this is the **__polypeptide chain__**.

Here is a still image of **__protein synthesis__** to help you better understand what is occuring. Notice that the upper left hand corner is the nucleus where **__transcription__** is occuring and at the bottom right hand corner is the ribosome where **__translation__** is occuring.