BIOL 005A Lecture Notes - Lecture 22: Last Universal Common Ancestor, Nuclear Membrane, Cell Nucleus
8 Mar 2018
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Document Summary
Compare the mechanisms of prokaryotic and eukaryotic transcription and. Describe mechanisms of protein synthesis regulation and how they differ among. Understand how prokaryotic protein synthesis can be targeted to disrupt bacterial prokaryotes and eukaryotes growth. Understand protein folding and consequences of improper folding. Translation of mrna can begin before transcription has finished. Mrna is transcribed directly from template dna molecule. The nuclear envelope separates transcription from translation. Transcription and translation differ in space and time. Rna transcripts are modified through rna processing to yield the. Pre-mrna is formed and then processed to yield mature mrna finished mrna. Prokaryotic and eukaryotic ribosomes differ biologically, but perform the same function. Very ancient common ancestor between bacteria and eukaryotes. Most eukaryotic genes and their rna transcripts have long noncoding stretches. Alternative rna splicing-some genes encode more than one kind of of nucleotides that lie between coding regions polypeptide-depends on which segments are treated as exons. Prokaryotic ribosomes are targets for many antibiotics.
