20.Which of the following is the precursor for purine biosynthesis?
(A) Adenine
(B) Hypoxanthine
(C) Aminopterin
(D) thymidine

1. Which of the following is the inhibitor for alternative purine synthesis? (A) guanine (B) hypoxanthine (C) aminopterin (D) thymidine

21.Deamination of 5-methyl cytosine leads to: (A) C to A transversion mutations (B) C to A transition mutations (C) G to A transversion mutations (D) G to A transition mutations

22.What is the major product for Glyoxylate cycle? (A) Citrate (B) succinate (C) oxaloacetate (D) pyruvate

23.The isoelectric point of alanine is 6.0. If alanine is dissolved in the pH 8.0 buffer and subjected to electrophoresis, it will: (A) not migrate to either anode or cathode (B) migrate to the cathode (negative pole) (C) migrate to the anode (D) some will migrate to the anode and some to the cathode

24.Continuing from the above question, this product is for: (A) TCA cycle in bacteria (B) gluconeogenesis in animal (C) TCA cycle in animal (D) gluconeogenesis in plant

25.The mutant form of prions is the causative agent of Mad Cow Disease in human. The major difference between mutant prions and the normal prions is that: (A) the mutant prions have a large percentage of α-helix whereas the normal prions have more β-sheets (B) the normal prions have a large percentage of α-helix whereas the mutant prions have more β-sheets (C) both the mutant prions and the normal prions have more β-sheets (D) both the mutant prions and the normal prions have a large percentage of α-helix

26. Which of the enzyme has higher substrate affinity? (A) A (B) B (C) C (D) D

27.Gel filtration chromatography separates the molecules based on the: (A) specific binding (B) net charge (C) size exclusion (D) precipitation

28.Which of the protease is involved in ubiquitin-dependent degradation pathway? (A) cathepsin (B) lysosome (C) calpain (D) proteasome

29.Which is responsible for DNA replication in eukaryotic mitochondria? (A) DNA polymerase α (B) DNA polymerase β (C) DNA polymerase γ (D) DNA polymerase δ

115年 - [無官方正解]115 國立清華大學_碩士班考試入學試題_生命科學暨醫學院甲組(生物與醫學科學組)﹕生物化學#142711

115年 - [無官方正解]115 國立臺灣大學_轉學生招生考試試題：生物化學概論#142642

115年 - [無官方正解]115 台灣聯合大學系統_碩士班招生考試_化學類：生物化學#139667

115年 - [無官方正解]115 國立臺灣大學_ 碩士班招生考試試題：生物化學(C)#137643

115年 - [無官方正解]115 國立臺灣大學_ 碩士班招生考試試題：生物化學(A)#137641

115年 - [無官方正解]115 國立臺灣大學_ 碩士班招生考試試題：生物化學(一般生物化學)#137622

115年 - 115 國立臺灣大學_ 碩士班招生考試試題：生物化學(B)#137619

114年 - [無官方正解]114 國立中興大學_碩士班招生考試試題_生物醫學研究所：生物化學#139094

114年 - [無官方正解]114 國立中正大學_碩士班招生考試試題_生物醫學科學系：生物化學#138415

114年 - [無官方正解]114 國立高雄大學_研究所碩士班招生考試試題_生命科學：生物化學#137690