{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

lecture 14 2008- DNAII - Lecture Notes DNA replication...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
2/13/08: Lecture Notes: DNA replication/ Protein Synthesis (Ch 10: 146-153, 160-161) Outline : Finish small pox life cycle Protein synthesis Transcription Translation OK, we know how DNA replicates… Now, how does small pox tell cells to make proteins? Steps of protein synthesis: 1) DNA is transcribed to mRNA 2) RNA is edited 3) mRNA attaches to ribosome 4) mRNA undergoes translation into amino acids - Chain of amino acids forms protein Protein synthesis (4 steps) Step 1: Transcription : DNA to mRNA Messenger RNA (mRNA) Carries protein-building instructions RNA structure Very similar to DNA structure 1) Phosphate group 2) Sugar 3) Nucleotide (base) Differences from DNA 1) Sugar is ribose not deoxyribose 2) Uracil (U) replaces Thymine (T) A binds to U 3) RNA is single-stranded Transcription is very similar to DNA replication Transcription STEPS: 1. Initiation – promoter tells RNA polymerase where to start 2.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}