1/22
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced |
---|
No study sessions yet.
Transcriptional control
if and how much of a gene is transcribed
Translational control
If and how much mRNA is translated
Post-translational control
changes to the protein after translation (becomes active/inactive, stable/unstable)
changes in chromatin structure
Positive vs negative regulation
Positive turns genes on (Activator)
Negative turns genes off (Repressor)
Transcription Factor
anything that assists with positive/negative regulation
Often recruit/repel RNA polymerase
Regulatory Element
Binding site for transcription factor
What are constitutive genes?
Genes that cannot be regulated ("always on")
harder for RNA polymerase to recognize and act on
What is a chromatin?
material that makes up chromosomes in eukaryotes
-comprised of histones organized into nucleosomes
-DNA + Histone = chromatin
How do chromatins help with regulation?
The more tightly packed the harder it is for RNA polymerase to recognise
Alternative splicing
Eukaryotic process where RNA "splices out" irrelevant introns, leaving only the exons
what is co-regulation?
process of expressing multiple genes in response to one stimulus
How does co-regulation occur in prokaryotes?
Prokaryotes use operons (long mRNA chain with multiple genes) and regulons (like eukaryotic regulation but under a specific name)
How do eukaryotes coregulate?
Can regulate multiple genes at the same time remotely (like a bluetooth connection)