#Question id: 604
#Unit 1. Molecules and their Interaction Relevant to Biology
An enzyme is irreversibly inhibited by diisopropylfluorophosphate (DFP). What does this show?
#Question id: 495
#Unit 1. Molecules and their Interaction Relevant to Biology
The main function of the pentose phosphate pathway is to:
#Question id: 4540
#Unit 3. Fundamental Processes
Transcription of eukaryotic genes can be repressed in various ways. These include the four mechanisms
|
1. Competition |
a-Repression is caused by recruiting histone modifiers that alter nucleosomes in ways that inhibit transcript |
|
2. Inhibition |
b-A repressor binds to a site on DNA beside an activator and interacts with that activator, occluding its activating region |
|
3. Direct repression |
c-By binding to a site on DNA that overlaps the binding site of an activator, a repressor can inhibit binding of the activator to a gene and thus block activation of that gene. |
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4. Indirect repression |
d-A repressor binds to a site upstream of a gene and, by interacting with the transcriptional machinery at the promoter in some specific way, inhibits transcription initiation. |
#Question id: 31267
#Unit 4. Cell Communication and Cell Signaling
#Question id: 5923
#General Aptitude
What day on 23/04/1990 ?