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Chapter 16: Q. 34 (page 416)
How can external stimuli alter post-transcriptional control of gene expression?
RBPs can be modified and alter the post-transcriptional control of gene expression.
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An increase in phosphorylation levels of eIF-2 has been observed in patients with neurodegenerative diseases such as Alzheimer鈥檚, Parkinson鈥檚, and Huntington鈥檚. What impact do you think this might have on protein synthesis?
How does the regulation of gene expression support the continued evolution of more complex organisms? a. Cells can become specialized within a multicellular organism. b. Organisms can conserve energy and resources. c. Cells grow larger to accommodate protein production. d. Both A and B
A mutation within the promoter region can alter the transcription of a gene. Describe how this can happen
In females, one of the two X chromosomes is inactivated during embryonic development because of epigenetic changes to the chromatin. What impact do you think these changes would have on nucleosome packing?
Prokaryotic cells lack a nucleus. Therefore, the genes in prokaryotic cells are:
a. all expressed, all of the time
b. transcribed and translated almost simultaneously
c. transcriptionally controlled because translation begins before transcription ends
d. b and c are both true
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