#Question id: 4558
#Unit 3. Fundamental Processes
Classes of RNA transcribed by the three eukaryotic nuclear RNA Polymerase;
|
Polymerase |
RNA Transcribed |
|
A. RNA polymerase I | i) tRNAs, 5S rRNA, snRNA, U6, 7S RNA |
|
B. RNA polymerase II |
ii) Pre-rRNA 28S, 18SrRNA, 5.8SrRNAs |
|
C. RNA polymerase III |
iii) mRNA, snRNAs, siRNAs, miRNAs |
Match the following correct combination given above combinations;
#Question id: 4559
#Unit 3. Fundamental Processes
The 5’Cap is added to the eukaryotic nascent RNAs shortly after
#Question id: 4560
#Unit 3. Fundamental Processes
TFIIH general is a general transcription factor phosphorylates the CTD multiple times on heptapeptide sequence such as
#Question id: 4561
#Unit 3. Fundamental Processes
Which factor recruits capping enzyme?
#Question id: 4659
#Unit 3. Fundamental Processes
Many bacterial responses are controlled by two component regulatory systems. What will happen at the high concentration of glutamine and at the low concentration of glutamine?
a) At high concentrations glutamine binds to a sensor domain of NtrB conformational change in the protein that inhibits its histidine kinase activity
b) NtrC phosphorylation takes place causes a conformational change in NtrC that unmasks the NtrC DNA-binding domain so that it can bind to the glnA enhancers
c) At the same time, the regulatory domain of NtrC blocks its DNA-binding domain from binding the glnA enhancers
d) At low concentrations of glutamine dissociates from the sensor domain in the NtrB protein, leading to activation of a histidine kinase transmitter domain
Which of the following given combination is correct?
#Question id: 4660
#Unit 3. Fundamental Processes
Two-component system regulating response to low Gln,
a) Glutamine dissociates from the sensor domain in the NtrB protein, leading to activation of a histidine kinase transmitter domain in NtrB
b) glutamine binds to a sensor domain of NtrB, causing a conformational change in the protein that inhibits its histidine kinase activity, the regulatory domain of NtrC blocks its DNA-binding domain from binding the glnA enhancers.
c) Activated transmitter domain of NtrB that transfers the γ-phosphate of ATP to a histidine residue (H), this phosphohistidine then transfers the phosphate to an aspartic acid residue (D) in the NtrC protein
d) This causes a conformational change in NtrC that unmasks the NtrC DNA-binding domain so that it can bind to the glnA enhancers
Which of the following combination is correct?