7.1 Transcription Flashcards
1
Q
RNA polymerase : goal, and characteristics
A
enzyme that adds more rna nucleotides to chain
- requires promoter
- ATP dependent
2
Q
rRNA
ribosomal RNAS
A
facilitate translation
-catclytic actiivy
- don’t have proteins but little bits that make up ribosomes later in protein creation
3
Q
microRNA
A
determine if gene is activated (gene expression) on or off
4
Q
Promoter
A
(-35,-10) regions with specific nucleotides
sigma factor binds to it
5
Q
What is the purpose of modifications like 5’ cap and poly(A) tail in eukaryotic pre-mRNA?
A
Enhance mRNA stability, aid in export to cytoplasm, and ensure completeness for accurate protein synthesis
6
Q
When does splicing occur?
A
After the 5 cap is added
