15. Which one plays the "sliding clamp" in the DNA replication?
(A) Cyclin A
(B) Cyclin B
(C) Cyelin D
(D) p53
(E) PCNA

1. All are correct about enhancer sequences in eukaryotic cells except: (A) they can oce cur cither upstream or downstream of the gene. (B) they can be in either oricntation (bi-directional). (C) enhancer function is dependent on recognition by a specific transcription factor. (D) specific tran inscription factor binding at an enhancer stimulates transcription by interacting with RNA polymerase II. (E) All are correct.

2. Amino-acyl-tRNA synthctases catalyze the reaction of a: (A) specific amino acid attachment to the 3'-OH at the 3'-CCA of a specific tRN( A ) (B) specific amino acid attachment to the 5'-OH at the 5'-CCA of a specific tRN( A ) (C) specific tRNA with ATP to form a so called "charged tRNA" that interacts with a specific site on mRN( A ) (D) All of the above. (E) None of the above.

3. Acidification of the stomach uses all of the following types of transport EXCEPT: (A) Cl- ion channels (B) H+/K+ ATPase (C) antiporters (D) symporters (E) All of above are used by stomach parietal cells.

4. Which of the following component(s) is NOT required for the secretory pathway using cotranslational translocation machinery? (A) ribosome (B) signal recognition particle (SRP) (C) ATPase (D) translocon (E) All of above are used in the secretory pathway.

5. Which of the following pathway(s) is NOT the fate of internalized proteins after endocytosis? (A) Internalized proteins move to the lysosome for protein degtadation. (B) Internalized proteins transport to Golgi through retrograde transport (C) Internalized proteins recycle back to the plasma membrane (D) Internalized proteins associate with ribosome for newly protein synthesis (E) All of above are correct.

6. Which part of the ribosome is responsible for peptidyI transfer? (A) 18S (B) 5S (C) 23S (D) 2.8S (E) 16S

7. Given a gene sequence below, please predict the transcript(s)? (A) S'-CGGAAC (B) 5'-AAACCG (C) 5'-AAUCCG (D) S'-UGGAAU (E) 5'-AUUCCG

8. The following methods can separate proteins based on their mass except? (A)centrifugation (B) ion exchange chromatography (C) SDS polyacrylamide gel electrophoresis (D) gel filtration chromatography (E) native polyacrylamide gel electrophoresis

9. A Holiday junction structure is a(n) (A) intermediate in genetic recombination (B) double-stranded DNA break (C) collapsed replication fork (D) thymine-thymine dimmer (E) all of the above

10. A mutation that changes a cysteine codon to a tryptophan codon is called a (A) missense mutation. (B) nonsense mutation. (C) frameshift mutation. (D) silent mutation. (E) Indel delction.

115年 - [無官方正解]115 國立臺灣大學_ 碩士班招生考試試題：細胞與分子生物學#137645

114年 - 114 國立臺灣大學_碩士班招生考試：細胞與分子生物學#125979

113年 - 113 國立臺灣大學_碩士班招生考試：細胞與分子生物學#118907

112年 - 112 國立臺灣大學_碩士班招生考試：細胞與分子生物學#117876

111年 - 111 國立臺灣大學_碩士班招生考試：細胞與分子生物學#120705

110年 - 110 國立臺灣大學_碩士班招生考試_生化科學研究所:細胞與分子生物學#102078

109年 - 109 國立臺灣大學_碩士班招生考試：細胞與分子生物學#125737

108年 - 108 國立臺灣大學_碩士班招生考試試題：細胞與分子生物學#125743

107年 - 107 國立臺灣大學_碩士班招生考試：細胞與分子生物學#125751