Pepsin, a digestive enzyme that degrades proteins in the stomach, is synthesized as pepsinogen and converted to active pepsin in the stomach by the removal of several amino acids. The activation of pepsin is an example of ____.
A) transcriptional regulation
B) translational regulation
C) posttranscriptional regulation
D) posttranslational regulation
E) RNAi
Correct Answer:
Verified
Q52: Increases in poly(A) tail length result in
Q53: When cells differentiate, they _.
A) lose DNA
B)
Q54: Transcription factors that control genes for developmental
Q55: Posttranslational modification includes _.
A) cleavage of poly-A
Q56: Sporadic cancers _.
A) may develop when proto-oncogenes
Q58: A small molecule of RNA is transcribed
Q59: One function of the 3' UTR (untranslated
Q60: Cytoplasmic determinants are _.
A) key mRNAs and
Q61: Many proto-oncogenes encode _.
A) growth-inhibiting factors
B) intracellular
Q62: RNAi could be used as an anti-viral
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