BIOL 2020 Lecture Notes - Lecture 14: Ribosome, Prokaryotic Small Ribosomal Subunit, Base Pair
29 Apr 2016
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Review: proteins at the promoter of eukaryotic rnap ii genes. Polya sequence is encoded and allows for cleavage and polyadenylation. After you cut the rna, now you have a free 5" phosphate that is not capped which means it is subject to exonuclease attack (part that is still being. Exonuclease works faster than rnapoly2? and knocks off the. Eukaryotic genomes have more intricate regulation of gene expression. Gene expression is regulated at multiple levels, including (but not limited to): transcriptional control, rna processing, rna editing, rna transport, translational control. Example of regulation of gene expression: alternative splicing. Alternative splicing: different combinations of exons are selected for inclusion in the mrna. Different combinations of exons can produce different proteins. We have more complexity even though we have a smaller genome than rice. Only in some mrna products will you have the ae included. Different protein isoforms are typically generated from the same gene through.
