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  1. 1. PROTEIN SYNTHESISThe Central Dogma = really important idea
  2. 2. Central Dogma• DNA  RNA Protein • Controlling the proteins in an organism controls the organism’s characteristics.
  3. 3. Central Dogma
  4. 4. Step 1: Transcription• In eukaryotes it occurs in the nucleus.
  5. 5. Steps:• 1) RNA polymerase (enzyme) • Binds to DNA and separates the two strands.
  6. 6. • 2) One strand of DNA is used as the template to make messenger RNA.• RNA nucleotides are added to growing strand.• No thymine in RNA has uracil instead• A=U and G=C
  7. 7. DNA strand = ATCGTGCAWhat would be the mRNA strand created?
  8. 8. • 3) Single stranded mRNA created andprocess is called transcription.• mRNA leaves the nucleus to go to theribosomes where it’s code is used to createa protein.

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