6. There are four levels in protein structure: primary, secondary, tertiary, and quaternary. The α-helix is in what level of protein structure? (A) Primary; (B) Secondary; (C) Tertiary; (D) Quaternary

6. There are four levels in protein structure: primary, secondary, tertiary, and quaternary. The α-helix is in what level of protein structure?
(A) Primary;
(B) Secondary;
(C) Tertiary;
(D) Quaternary

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複選題10. Regarding to biosynthesis of a protein in eukaryotes, which following description is correct? (A) The molecule of tRNA functions as a template of genetic information, and the rRNA serves as an anti-codon to synthesize specific amino acid (B) Protein synthesis occurs in the ribosome, via a specific aminoacyl-tRNA synthetase (C) The polypeptide synthesis requires an AUG as a start codon, while no specific termination codon is required. (D) The polypeptide chains undergo post-translational modification in endoplasmic reticulum

6. There are four levels in protein structure: primary, secondary, tertiary, and quaternary. The α-helix is in what level of protein structure?
(A) Primary;
(B) Secondary;
(C) Tertiary;
(D) Quaternary

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