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Genomes_gene_regulation_2008

Genomes_gene_regulation_2008 - Genomes and regulation of...

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Genomes and regulation of gene expression How do prokaryotic and eukaryotic genomes differ in size and organization? Why is the human genome so big? How is gene expression regulated in prokaryotes and eukaryotes? mRNA 5 5 3 RNA polymerase Permease Transacetylase lac operon β -Galactosidase lacY lacZ lacA lac I
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Promoters: sites for transcription initiation by RNA polymerase
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3 Processing steps before mature mRNA can be exported to cytoplasm for translation
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Q: Which process(es) is(are) unique to prokaryotes? A) Transcription B) Coupled transcription and translation C) 5’ cap D) AUG as the translation initiation codon E) Regulation of transcription by proteins binding to specific sequences in the DNA
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Q: Which process(es) is(are) unique to eukaryotes? A) Transcription B) Coupled transcription and translation C) 5’ cap D) AUG as the translation initiation codon E) Regulation of transcription by proteins binding to specific sequences in the DNA
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Q: Which species has the biggest genome?
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