問題詳情
73. A partial diploid E. coli with which of the following genotypes would turn blue on the plate containing X-Gal in thepresence or absence of the inducer IPTG?
(A) I+O+lacZ+/ I+O+lacZ-
(B) IO+lacZ+ / I+O+lacZ-
(C) I+OclacZ- / I+O+lacZ+
(D) I+OclacZ+/ I+O+lacZ+
(E) I+OclacZ-/ IO+lacZ+
(A) I+O+lacZ+/ I+O+lacZ-
(B) IO+lacZ+ / I+O+lacZ-
(C) I+OclacZ- / I+O+lacZ+
(D) I+OclacZ+/ I+O+lacZ+
(E) I+OclacZ-/ IO+lacZ+
參考答案
答案：D
難度：非常困難0.166667
統計：A(0),B(1),C(4),D(2),E(2)
內容推薦
- Animal communication involves what type of sensory information?(A) visual (B) auditory (C) chemi
- When Thomas Hunt Morgan crossed his red-eyed F1 generation flies to each other, the F2 generatio
- The emergence of 14 species of Galápagos finches from a common ancestor that finds itself in a n
- Which of the following statements best compares a pseudocoelom and a coelom?(A) A pseudocoelom i
- 3私は先生のあとについていき、学校の門を潜った。(A)もぐった (B)すべった (C)しずんだ (D)くぐった
- Species that are not closely related and that do not share many anatomical similarities can stil
- Which of the following mating systems does the Pheasant-tailed Jacana (Hydrophasianus chirurgus)
- Carrying capacity is(A) seldom reached by marine producers and consumers because of the vast res
- Influenza virus has pH-sensitive, acidic fusogenic proteins. Based on this, influenza virus woul
- 2夏休みの宿題は大方終わらせたので、安心できる。(A)おおかた (B)たいがい (C)たいほう (D)おおがた
內容推薦
- Sequencing an entire genome, such as that of Caenorhabditis elegans, a nematode, is most importa
- Which of the following statements about histone acetylation is WRONG?(A) Histone acetylation usu
- 5娘の部屋には、（ ）とぬいぐるみが並べられている。(A)ちょっぴり (B)きっぱり (C)ずらり (D)ごろり
- A mutant cell does not have mannose 6-phosphate receptor. Lysosomal enzymes in this cell will(A)
- Which of the following mechanisms is essential for animal navigation?(A) a time keeping mechanis
- Countercurrent exchange in the fish gill helps to maximize which of the following?(A) endocytosi
- Which of the following statements is true?(A) miRNAs are made from long dsRNAs, whereas siRNAs a
- 6彼の仕事は、スマートホンの（ ）の開発だ。(A)アプリ (B)サイクル (C)デート (D)サプリ
- Place the following events of mitosis in the correct order.I. Sister chromatids align on the met
- The sexually mature organism retains traits of the juvenile stage of the organism’s ancestor. Th
- Sexual reproduction(A) allows animals to conserve resources and reproduce only during optimal co
- Attaching the activation domain of Gal4 to the Tet (tetracycline) repressor creates a hybrid pro
- 7業績が悪く、会社は社員の賃金（ ）を行うことを決定した。(A)チェンジ (B)キット (C)アップ (D)カット最も近い意味の言葉を選ぶ
- 彈性訂價思維不包含下列那一項？(A)時段差異 (B)品質差異 (C)品牌差異 (D)不因人身份而價格有差異
- Which of the following statements regarding balancing selection is FALSE?(A) The balancing selec
- Members of two different species possess a similar-looking structure that they use in a similar
- In a neuron at rest, which of the following is true?(A) Leakage of sodium ions into the neuron i
- 8この映画監督はありふれた話を、面白くする演出することで有名だ。(A)面白くない (B)悲しい (C)よくある (D)楽しい
- 下圖為鼠籠三相感應馬達主線路及控制線路圖。控制線路的LS1及LS2分別為沉澱油櫃之高油位與低油位開關接點，COS為切換開關。若由現況電路，馬達是停止的，也無法自動啟動和停止。如何操作這台泵馬達使
- Which is NOT involved in RNA editing?(A) site-specific deamination of adenines (B) site-specific
- 9わざわざ友人の家を訪ねたのに、留守で会えなかった。(A)せっかく (B)わざと (C)せっかち (D)そろそろ
- 下列何項不包含於使用資料分析商店潛在的位址，包含： (A)GIS資料 (B)品牌發展索引、人口索引 (C)可比較的商品分析 (D)飽和商圈。
- 10あの女性は自分の過去をしみじみと語り始めた。(A)あっさり (B)深く (C)弱く (D)さっぱり
- 一、是非題 （每題2分）臺灣愛滋病毒感染者年齡多在20～29歲之間，「危險性行為」與「毒品使用」是最主要的傳染途徑。(A)O(B)X
- ⑵求空氣隙中的磁場強度 。（5 分）