2. What is the active form of methionine and acts as an intracellular methyl group donor? (A) S-adenosylhomocysteine, (B) homocysteine, (C) S-adenosylmethionine, (D) 5-methylthioadenosine, (E) None of the above.

2. What is the active form of methionine and acts as an intracellular methyl group donor?
(A) S-adenosylhomocysteine,
(B) homocysteine,
(C) S-adenosylmethionine,
(D) 5-methylthioadenosine,
(E) None of the above.

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B1 · 2025/04/06

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What is the active...

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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.

2. What is the active form of methionine and acts as an intracellular methyl group donor?
(A) S-adenosylhomocysteine,
(B) homocysteine,
(C) S-adenosylmethionine,
(D) 5-methylthioadenosine,
(E) None of the above.

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2. What is the active form of methionine and acts as an intracellular methyl group donor?(A) S-adenosylhomocysteine,(B) homocysteine,(C) S-adenosylmethionine,(D) 5-methylthioadenosine,(E) None of the above.

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相關試題

相關試卷

2. What is the active form of methionine and acts as an intracellular methyl group donor?
(A) S-adenosylhomocysteine,
(B) homocysteine,
(C) S-adenosylmethionine,
(D) 5-methylthioadenosine,
(E) None of the above.