88. In E. coli, base-pairing between a mRNA's ______ and the 3' end of the 16S rRNA permits the ribosome to select the proper initiation codon. (A) 5' cap (B) Shine–Dalgarno sequence (C) polyA tail (D) start codon (E) initiation factor

88. In E. coli, base-pairing between a mRNA's ______ and the 3' end of the 16S rRNA permits the ribosome to select the proper initiation codon.
(A) 5' cap
(B) Shine–Dalgarno sequence
(C) polyA tail
(D) start codon
(E) initiation factor

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統計： A(6), B(96), C(1), D(6), E(6) #1997447

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B1 · 2021/03/19

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The Shine–Dalgarno (...

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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

88. In E. coli, base-pairing between a mRNA's ______ and the 3' end of the 16S rRNA permits the ribosome to select the proper initiation codon. (A) 5' cap (B) Shine–Dalgarno sequence (C) polyA tail (D) start codon (E) initiation factor

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88. In E. coli, base-pairing between a mRNA's ______ and the 3' end of the 16S rRNA permits the ribosome to select the proper initiation codon.
(A) 5' cap
(B) Shine–Dalgarno sequence
(C) polyA tail
(D) start codon
(E) initiation factor