問題詳情
69. Topoisomerases:
(A) can change the linking number in increments of 1 or 2.
(B) can act on single-stranded DNA circles.
(C) change the degree of supercoiling of a DNA molecule but not its linking number of DNA.
(D) occur in bacteria, but not in eukaryotes.
(E) always require energy from ATP.
(A) can change the linking number in increments of 1 or 2.
(B) can act on single-stranded DNA circles.
(C) change the degree of supercoiling of a DNA molecule but not its linking number of DNA.
(D) occur in bacteria, but not in eukaryotes.
(E) always require energy from ATP.
參考答案
無參考答案
內容推薦
- When monosaccharide dissolves in water at 40°C, it can undergo interconversion between α and β f
- Phosphate (Pi) is transported into the mitochondria from the cytosol by a phosphate carrier whic
- ( )A: Who is watching TV in the living room?B: Mom and Dad .(A) is (B) do (C) are (D) doing
- ( ) Edward is busy Christmas cards for his friends.(A) make (B) to make (C) making (D) to making
- Pyruvate is oxidized to produce ________, which further reacts with ________ to produce ________
- Which complex in the electron-transport chain contains copper ions?(A) Complex I (B) Complex II
- ( ) A: you drinking a coke, Nick?B: No, I .(A) Don’t; don’t (B) Aren’t ; am not (C) Is; am not (
- ( ) running in the museum.(A) Let’s not (B) Not (C) No (D) Don’t
- Which of the following can not transport proton across mitochondria inner membrane?(A) 2,4-Dinit
- If glucose is labeled with 14C at C-5, which of the following compounds can be found in TCA cycl
內容推薦
- ( ) A: Joe’s parents are fighting again. And this time, they fight like cat and dog.B: Poor Joe!
- ( ) A:B: She’s from America.(A) What is the girl doing? (B) Where is your friend from?(C) Who is
- The ion channel that opens in response to acetylcholine is an example of a ________ signal trans
- ( ) A: How’s your brother doing?B:(A) He’s not ready. Wait, please. (B) He’s funny. (C) He’s ove
- The energy of a photon absorbed by an antenna molecule of the photosystem finds its way to a chl
- In the erythrocyte, glycolysis produces ________that is further metabolized to ________.(A) lact
- ( ) Betty is doing her homework, and we , too.(A) do (B) be (C) are (D) is
- ( ) My brother is sitting at the table and dinner now.(A) eat (B) let’s eat (C) don’t eat (D) ea
- What role does AP endonuclease have in the base-excision repair system?(A) It removes the damage
- Restriction-modification systems:(A) exist in all organisms as a protection against foreign DNA
- DNA polymerase I synthesizes new DNA with very high fidelity, due to its ________.(A) high proce
- Which of the following is related to the function of proofreading step?(A) Riboswitch (B) EF-G i
- ( ) The game is eight Saturday morning.(A) on; on (B) on; at (C) at; on (D) at; at
- What type of mutation causes conditions such as Huntington’s disease and Fragile X syndrome?(A)
- What acts as the nucleophile in the mechanism of nucleotide addition by RNA polymerase?(A) The 5
- ( ) A: Everyone, nice to your parents.B: OK, Ms. Smith.(A) is (B) are (C) do (D) be
- 【題組】＿＿＿＿＿＿ There is a tall b ng near the train station.編輯私有筆記及自訂標籤國一英文上第三次-107 年 - 2018高雄市市立大樹國中七
- There are two code sequences for a particular computer, and three classes of instructions (A, B,
- The photosynthetic electron transport system includes the transmembrane complexes PSI, PSII and
- 閱讀測驗： A. It is a kind of food. It grows best in hot, wet weather, usually on the farm under water.
- 【題組】To which of the positions marked [1], [2], [3], [4], and [5] does the following sentence bes
- 【題組】Why does the writer mention the Diagnostic and Statistical Manual of Mental Disorders in par
- 【題組】According to paragraph 2, a person who has been diagnosed with schizophrenia and who is devo
- 【題組】Which of the sentences below best expresses the essential information in the highlighted sen
- 1 民營鐵路非因不可抗力而停止營運者，處新臺幣多少罰鍰？(A) 10 萬元以上 50 萬元以下 (B) 30 萬元以上 150 萬元以下(C) 60 萬元以上 300 萬元以下 (D) 100 萬元以