Copying DNA.

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  • Created by: Chris
  • Created on: 11-04-11 18:58

The cell cycle consists of Mitosis and Interphase. Interphase consists of 'G' 1,  'S' & 'G' 2. 'G' 1 is 99% of the cell's life, in which proteins are made:

  • DNA unwinds the hydrogen bonds break. One side of the DNA is the coding strand the other is the template strand. We need a copy of the coding strand.
  • The 'm' RNA is built up against the template strand, Uracil being paired with Adenine, Polymerase joins the nucleotides together.
  • 'm' RNA leaves the nucleus  (Transcription ends, Translation starts).
  • Ribosome clamps around the 'm' RNA 9 a time.
  • 't' RNA brings an amino acid with a specific triplet. The triplet on 't' RNA is the Codon and the triplet on the 'm' RNA is the Anticodon.
  • Ribosomes fuse the amino acids together forming peptide bonds. There are normally several ribosomes on one chain.
  • Protein is packaged by the Golgi Apparatus 
  • Sometimes ribosomes docks onto 'R' 'E' 'R' and feeds protein inside it. Vesicle forms and is then taken to Golgi Apparatus where

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