Protein synthesis

Protein synthesis

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  • Today we'll discuss protein synthesis. Protein synthesis has two steps: transcription and translation.
  • Transcription is the first step of protein synthesis that takes place inside the nucleus where DNA is located.
  • During transcription, an enzyme called helicase breaks up the hydrogen bond in DNA so that another enzyme, RNA polymerase can make a copy of the information.
  • RNA polymerase will then copy the information from the DNA template into an mRNA or messenger RNA strand.
  • The second step is translation which takes place inside the cytoplasm. During translation mRNA attaches to a ribosome(rRNA) and a start codon is read. Then tRNA brings an amino acid and attaches to the codon with an anti-codon. This repeats causing the amino acids to form a peptide bond while the tRNA detaches.
  • Once a stop codon is read the process of bringing in tRNA with amino acids stops. Then the protein folds up and is a fully functioning protein. This is the process for protein synthesis. - Chris Boyd
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