18. Holiday junction can be found at _____
(A) replication forks
(B) chromosome bivalents during meiosis
(C) sister chromosomes during mitosis
(D) integrating retrovirus
(E) infectious adenovirus

19. The initial double strand cut of homologous recombination is catalyzed by _____(A) Rec A (B) Rec B, C, & D (C) SSB (D) Ruv A &B (E) Spoll

20. The synthesized Okazaki fragments in the lagging strand can be connected by the _____ enzyme to form nascent continuous DNA strand. (A) ligase (B) DNA polymerase III (C) RecA (D) telomere (E) topoisomerase I

21. Prokaryotic and Eukaryotic RNA's differ in that: (A) rRNA molecules are only subunits of the prokaryotic ribosome. (B) Eukaryotes have a pre-mRNA that requires splicing to create the functional transcript (C) Prokaryotes have non-coding sequences that are removed during RNA-transcript processing (D) Eukaryotes have simpler ribosomes, consisting of fewer subunits. (E) None of these.

22. Which of the following is a way in which RNA synthesis does not differ from DNA synthesis? (A) Precursors are ribonucleoside triphosphates. (B) Only one strand of DNA is used as a template for the synthesis of a complementary RNA chain in any given reaction. (C) The nucleotide sequence of the mRNA is identical to the nontemplate strand of DNA except that U substitutes for T. (D) RNA chains can be initiated de novo. (E) None of these

23. A bacterial (prokaryotic) ribosome is composed of _____ subunits. (A) 20S & 40S (B) 30S & 50S (C) 40S & 60S (D) 20S & 60S (E) 50S & 70S

24. Nonsense codons are (A) codons that code for multiple amino acids. (B) codons that code for no amino acids. (C) codons that code for the same amino acids. (D) codons that can be read forward or backward. (E) codons that code for start codons.

25. All of the amino acids, except Proline, contain: (A) A free amine group (B) A free carboxyl group (C) A free R group (D) A free amine group and A free carboxyl group (E) A free carboxyl group and A free R group

26. A single DNA unit that enables the simultaneous regulation of more than one gene in response to environmental changes is called (A) promoter. (B) operator. (C) regulator. (D) inducer. (E) operon.

27. Which of the following would most likely be controlled by a repressible gene? (A) Tryptophan synthesis (B) Lactose catabolism (C) Arabinose catabolism (D) Tryptophan synthesis and Lactose catabolism (E) Lactose catabolism and Arabinose catabolism

28. Most decisions controlling the amount of gene product synthesized are made during (A) termination of replication. (B) transport of mRNA to the cytoplasm. (C) initiation of transcription. (D) alternative splicing. (E) regulation of translation.

115年 - [無官方正解]115 國立清華大學_碩士班入學考試試題_生命科學暨醫學院甲組(生物與醫學科學組)：分子生物學#142697

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：分子生物學#138414

114年 - [非官方正解]114 國立清華大學_碩士班入學考試試題_生命科學暨醫學院甲組(生物與醫學科學組)：分子生物學#132699

113年 - [無官方正解]113 國立中正大學_碩士班招生考試試題_生物醫學科學系：分子生物學#136961

113年 - [非官方正解]113 國立成功大學_碩士班招生考試_藥理學研究所 :分子生物學#126004

113年 - [非官方正解]112 國立臺灣大學_碩士班招生考試：分子生物學(B)#118906

112年 - [非官方正解]112 國立臺灣大學_碩士班招生考試：分子生物學(C)#120020

112年 - [非官方正解]112 國立臺灣大學_碩士班招生考試：分子生物學(B)#120007

112年 - [非官方正解]112 國立臺灣大學_碩士班招生考試：分子生物學(D)#118608

112年 - 112 國立臺灣大學_碩士班招生考試：分子生物學(A)#118594