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113年 - 113 亞洲大學_學士後獸醫學系招生考試試題_學士後獸醫學系:生物化學#123308
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20. In persons with amyloidosis, what is the principal secondary structure of amyloid?
(A) α-Helix
(B) β-Sheet
(C) β-Turns
(D) Random Coil
答案:
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統計:
A(2), B(2), C(0), D(3), E(0) #3331914
詳解 (共 1 筆)
木公的診間裝潢中
B1 · 2025/04/01
#6355750
In persons with amyl...
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18. Histidine has the following pKa values: pK1 = 1.82, pK2 = 9.17, = 6.0 Which is the isoelectric point of aspartic acid? (A) 3.91 (B) 5.50 (C) 7.59 (D) 8.50
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19. Which of the following proteins is absent α-helices in its secondary structure? (A) Hemoglobin (B) Insulin (C) Chymotrypsin (D) Collagen
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21. Which of the following enzymes can introduce negative supercoils in DNA replication? (A) DNA ligase (B) DNA primase (C) DNA helicase (D) DNA gyrase
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22. Which of the following forces is a major determinant in the maintenance of protein conformation? (A) van der Waals forces (B) Disulfide bond (C) Hydrogen bonds (D) Hydrophobic interactions
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23. What is the main function of salvage pathways in nucleotide synthesis? (A) Utilize preformed purines and pyrimidines for nucleotide synthesis (B) Synthesize nucleotides from precursor molecules (C) Convert ribose-5-phosphate into nucleotide bases (D) Break down preformed nucleotides
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