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Control of Gene Expression in Eukaryotes

by: Alisa A.

Control of Gene Expression in Eukaryotes Bio 111

Marketplace > Adelphi University > Biology > Bio 111 > Control of Gene Expression in Eukaryotes
Alisa A.

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Control of Gene Expression in Eukaryotes, Chapter 19
Biological Concepts and Methods
Class Notes
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This 1 page Class Notes was uploaded by Alisa A. on Monday February 15, 2016. The Class Notes belongs to Bio 111 at Adelphi University taught by in Winter 2016. Since its upload, it has received 43 views. For similar materials see Biological Concepts and Methods in Biology at Adelphi University.


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Date Created: 02/15/16
Chapter 19: Control of Gene Expression in Eukaryotes  ● Eukaryote vs Prokaryote  ○ Eukaryotic: Complex Cells, has a defined nucleus  ● Differential Gene Expression: Why do we see certain RNA’s in certain cells  ○ DNA, mRNA, RNA, Protein (Central Dogma)  ■ Replication: DNA makes more DNA  ■ Transcription: DNA makes RNA  ■ Translation: RNA makes protein  ○ DNA wound up tight, to have transcription occur it needs to open up. To do this  we have chromatin remodeling so that the promoters and transcription factors  can bind to the DNA.  ○ Transcription occurs, forming initial RNA (made up of exons and introns)  ○ RNA processing, where we splice (cut and remove the introns) and add a tail and  cap. Splicing can cause different gene forms.  ○ mRNA stability, can be broken down rapidly which can mean that they are not  making much protein. If stable then can make a lot of protein. Leaves nuclear  and enters cytoplasm.  ○ Translation is the change into amino acid sequence, forming a polypeptide.  ○ Post­ translational modification, when a protein gets folded into correct  configuration. 


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