BIO12 - DNA AND PROTEIN SYNTHESIS

What is interphase (3)

• Semi-conservational replication

  • DNA = 1 new strand + 1 OG strand

• DNA precisely copied

  • Daughter identical to parent

• DNA unwinds into 2 strands → template for complementary strand

What are the 3 steps of DNA replication? (NEED TO REDO)

UNZIPPING

• DNA helicase breaks H-bonds betw. paired nucleotide

  • Unwinds DNA
    

COMPLEMENTARY BASE PAIRING

• Nucleotides + exposed bases = H-bonds in cytoplasm

  • Attaches at bases ONLY

• DNA primase adds RNA section

  • Starts pairing

JOINING

• Enzyme + DNA polymerase attaches to new DNA strand

  • On backbone

• Polymerase replaces RNA fragments w/ DNA

What are the 3 types of RNA and their uses?

• Messenger RNA

  • Transcription

• Ribosomal RNA

  • Translation

• Transfer RNA

  • Translation

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