Eukaryotic genome and Expression

Eukaryotic genome and Expression - Eukaryotic genome and...

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Eukaryotic genome and Expression 14.1 Eukaryotic Genome -eukarytic genome is larger than prokaryotic genome -eukaryotic genomes have more regulatory sequences -much of euk. Genome is noncoding -mutliple chromosomes for euks - transcription and translation are physically separated Model organisms Yeast -haploid/diploid life cycle -E. Coli and yeast both use about same number of genes for protein targeting -extra genes required for cell regulation -histone encoding -CDKs Nematode and Development -worm -developmental life cycle -encode intercellular proteins -Drosophile -model for genetics Two types of highly repeated sequence: -minisatellites- 10to 40 bps long but repeated several thousand times; number of minisatillies differes from individual to individual -microsatalites- 1-3 pbs present in clusters of 15 to 100 copies; scattered -called satellites because AT to CG ratio is radically different than rest of genome -not present in mRNA Moderatly repetitive sequences -highly repetitive sequences aren’t transcribed, some moderately repetitive sequences are
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Eukaryotic genome and Expression - Eukaryotic genome and...

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