85. Transcriptional activators that have variable positions and orientations are called _______. (A) enhancers (B) operators (C) introns (D) polycistrons (E) promoters

85. Transcriptional activators that have variable positions and orientations are called _______.
(A) enhancers
(B) operators
(C) introns
(D) polycistrons
(E) promoters

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統計： A(16), B(1), C(0), D(3), E(4) #3205150

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89. Chymotrypsin, a serine protease, preferentially cleaves a peptide bond adjoining a bulky non-polar side chain. This is because chymotrypsin's specificity pocket _______. (A) is mostly filled with large side chains (B) contains a negative charge (C) contains a positive charge (D) contains a sulfhydryl group that forms a disulfide bond with the substrate (E) is lined with small hydrophobic side chains, leaving considerable room in the nonpolar pocket

85. Transcriptional activators that have variable positions and orientations are called _______.
(A) enhancers
(B) operators
(C) introns
(D) polycistrons
(E) promoters

詳解 (共 1 筆)

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