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B7: Demonstrate an Understanding of Protein Synthesis
1
Transcript
Overview
A cell uses DNA to determine a sequence of amino acids in the protein through two stages: transcription and translation. This determines the proteins structure, resulting in its function. RNA assists in the process in the form of mRNA, rRNA, and tRNA.
Transcription
- Takes place in the nucleus
- Produces a DNA copy called mRNA; mRNA transports this to the ribosomes/cytoplasm to start translation
- Helicase unwinds one DNA strand
- Polymerase takes mRNA nucleotides(A,U,C,G) and links them through hydrogen bonds
Translation
- Occurs in the ribosome of the cell
- Translates mRNA into a protein by linking amino acids provided by the tRNA
- Small and large ribsomal subunits are made of proteins and rRNA
B7: Demonstrate an Understanding of Protein Synthesis
Initiation, Elongation & Termination
1) Initiation:
2) Elongation:
3) Termination:
Matt Keis
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