#Question id: 12253
#Unit 10. Ecological Principles
#Question id: 32277
#Unit 2. Cellular Organization
#Question id: 4076
#Unit 3. Fundamental Processes
RNA-binding proteins
a. can be identified by chromatography of UV irradiated nuclear extracts over oligo-dT columns.
b. can be identified by sequence homology to known RNA-binding domains.
c. have a conserved structure as seen by X-ray crystallographic analysis.
d. alter the secondary structure of pre-mRNAs, which decreases interactions with other RNAs or proteins.
e. always remain in the nucleus.
#Question id: 1236
#Unit 4. Cell Communication and Cell Signaling
Arrange the following events in the proper order in which they occur during transduction of the TNF-α signal
a. phosphorylation of I-κB
b. binding of E3 ubiquitin ligase to I-κB
c. polyubiquitination of I-κB
d. nuclear localization of NF-κB
e. activation of TAK1 kinase
#Question id: 4090
#Unit 3. Fundamental Processes
Tryptophan synthesis can be controlled by a process called attenuation in which the levels of tryptophan in the cell control translation by