The 5 Steps of Protein Synthesis

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Last updated 4:14 PM on 9/13/23
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5 Terms

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Unzipping

- DNA double helix unwinds to expose a sequence of nitrogenous bases.

- Hydrogen bonds are broken.

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Transcription

A copy of one of the DNA strand is made. This copy is made of mRNA which travels from nucleus into the main body of the cell, where protein synthesis occurs.

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Translation (Initiation)

mRNA couples w/ ribosome & tRNA brings free amino acids to ribosomes.

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Elongation

- Anticodon of tRNA recognizes codon on mRNA.

- Ribosome adds amino acid to growing chain of amino acids

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Termination

As polypeptide grows, it folds to form a protein and continues to grow until a stop codon is encountered. Then, the ribosome releases polypeptide.