39. The coenzyme for two single carbon additions in purine biosynthesis is: (A) THF, (B) biotin, (C) SAM, (D) TPP, (E) none are true.

39. The coenzyme for two single carbon additions in purine biosynthesis is:
(A) THF,
(B) biotin,
(C) SAM,
(D) TPP,
(E) none are true.

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4. A Ramachandran plot shows (A) the amino acid residues which have the greatest degree of rotational freedom, (B) the sterically allowed rotational angles between R groups and α-carbons in a peptide, (C) the sterically allowed rotational angles between Cα and the amide nitrogen (Cα-N) as well as between Cα and the amide carbonyl carbon (Cα-CO), (D) the sterically allowed rotational angles about the amide nitrogen (NH) and CO, (E) the amino acid residues that form α-helix, β-sheet, etc.

39. The coenzyme for two single carbon additions in purine biosynthesis is:
(A) THF,
(B) biotin,
(C) SAM,
(D) TPP,
(E) none are true.

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39. The coenzyme for two single carbon additions in purine biosynthesis is:(A) THF,(B) biotin,(C) SAM,(D) TPP,(E) none are true.

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相關試題

相關試卷

39. The coenzyme for two single carbon additions in purine biosynthesis is:
(A) THF,
(B) biotin,
(C) SAM,
(D) TPP,
(E) none are true.