#Question id: 4083
#Unit 3. Fundamental Processes
Differential splicing of the Ca2+-activated K+ channel gene in ciliated neurons results in
a. hair cells with different response frequencies.
b. different channel isoforms.
c. channels that open at different calcium concentrations.
d. different channel mRNAs expressed in different cells.
#Question id: 4084
#Unit 3. Fundamental Processes
The nuclear pore complex
a. is a large complex made of many different proteins.
b. is an octagonal, membrane-embedded structure with long filaments.
c. is required for transport of all molecules in or out of the nucleus.
d. binds to importin via FG-repeats.
e. hydrolyzes bound GTP to GDP
#Question id: 4085
#Unit 3. Fundamental Processes
When TAT protein fails to bind to the TAR region of the HIV transcript, which of the following statements is (are) true?
#Question id: 4086
#Unit 3. Fundamental Processes
RNA interference
a. utilizes antisense RNA.
b. utilizes double-stranded RNA.
c. is used to silence expression of genes.
d. utilizes short interfering RNAs.
#Question id: 4087
#Unit 3. Fundamental Processes
Polyadenylation can promote translation
a. of the fragile-X gene.
b. of stored oocyte mRNAs.
c. by allowing for greater interaction at the 5ยด end.
d. by allowing for greater interaction with translation initiation factors.
#Question id: 4088
#Unit 3. Fundamental Processes
The 28S, 18S, and 5.8S rRNAs are
a. transcribed by RNA polymerase II.
b. encoded by a single transcription unit.
c. arranged in tandem arrays.
d. processed in the cytoplasm.