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Help with Protein Synthesis?

Help! What is Protein Synthesis?

  • I have a periodic assessment tomorrow asking what protein synthesis is and i dont know what to put!

  • Answer:

    protein synthesis is a two-step process: 1. Transcription (nucleic acids of RNA base pair with nucleic acids of DNA to form an RNA strand. This strand is then moved out of the nucleus by mRNA and out to the ribosomes, located in the cytosol.) 2. Translation ( mRNA strand is complemented by it's complementary tRNA nucleic acids. each tRNA has an amino acid attached to it, and so when these amino acids (aa) form on top of each other when they line in parallel to the strand of mRNA, these aas form a protein. protein is now made= protein synthesis is complete.

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Protein sysnthesis is a very complex process, but basically it involves the transcription of DNA in the nucleus into small segments of mRNA that encode for a particular protein. This mRNA is transported out of the nucleus and then comes into contact with a free ribosome in the cytoplasm. The mRNA communicates via codons, three nucleotide segments that correspond to a tRNA on the ribosome that brings in the appropriateamino acid. As the mRNA is passed along the ribosome the protein chain elongates and typically is inserted into rER where modifications such as folding and saccharide additions are made. This tells the protein where it is to go in the cell for its proper function. That is basically protein synthesis.

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