Protein Synthesis
- Created by: AngelPanesar
- Created on: 02-03-16 18:34
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- Protein Synthesis
- 1) Transcription
- In the Nucleus
- 1. Section of the DNA is unwound by an enzyme and the 2 stands separate
- Hydrogen bonds are broken
- 2. Free RNA nucleotides attach with DNA, they then join together by sugar phosphate bonds
- RNA - Ribonucleic acid
- mRNA strand is formed it peels of the DNA and leaves the nucleus and goes into the cytoplasm
- mRNA - Messenger RNA
- In the RNA strand the bases A,C,G remain but T is replaced with U
- 2) Translation
- In the cytoplasm
- 1. The mRNA attaches to a ribosome
- Ribosome - Site of Protein synthesis
- 2. Each mRNA codon,codes for a specific amino acid
- Codon - Set of 3 bases
- 3. An anti - codon (tRNA) matches with the corresponding codon
- tRNA - Carries the Anti-codon and amino acid
- A with U G with C
- 4. tRNA continue to attach to the next codon in the chain and the amino acids form a peptide bond with each other
- Eventually this forms a polypeptide bond which is the Protein
- 5. After the amino acid joins another, the tRNA leaves and looks for another amino acid.
- 1) Transcription
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