DNA Transcription Flashcards
Protection against foreign elements
Antibody
Catalyze reactions
Enzymes
Transmits signals
Messenger
Structure and Support for cells
Structural
Binds and carries atoms and small molecules
Transport/ Storage
Enzyme responsible for Transcription
RNA Polymerase
What strand is used to encode RNA from
Template strand
Delivers the bases of what should be paired to the template strand
Nitrogen Triphosphate
First step of gene expression
Transcription
DNA to RNA
Transcription
Where does transcription occur
Nucleus
TRanscription Process
- Initiation
- Elongation
- Termination
Initiation of Transcription
- Small open complex
- RNA Polymerase binds to the promoter of template strand
Promoter region
TATA Box
Elongation of Transcription
- Initiates transcription
Where the main event happens
Elongation
Termination of Transcription
- mRNA seperates from DNA Strand
Place for protein synthesis
Ribosomes
Template strand
3’ to 5’
RNA
5’ to 3’
in where does mRNA must go through additional process
Eukaryotes
3 processes involved in additional processing
- Splicing
- Editing
- Polyadenylation
Splicing
- Exons are joined together
- Introns are removed
Pre-RNA is now a mature RNA
catalytic RNA molecules that function as enzymes and can splice RNA
Ribozymes