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【简答题】
请回答下列有关遗传信息传递的问题。 ( 1)为研究某病毒的致病过程,在实验室做了如下图所示的模拟实验。 1病毒中分离得到物质A。已知A是单链的生物大分子,其部分碱基序列为 —GAACAUGUU—。将物质A加入试管甲中,反应后得到产物X。经测定产物X的部分碱基序列是—CTTGTACAA—,则试管甲中模拟的是 过程。 2将提纯的产物X加入试管乙,反应后得到产物Y。产物Y是能与核糖体结合的单链大分子,则产物Y是 ,试管乙中模拟的是 过程。 ( 2)若该病毒感染了 上皮细胞,则 组成子代病毒外壳的化合物的原料来自 ,而决定该化合物合成的遗传信息来自 。
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举一反三
【单选题】Directions: Decide which of the following best states the author's purpose of writing.
A.
To cheer up the disappointed B student.
B.
To tell the student what a grade really means and what it doesn't.
C.
To show with his personal experiences that grades are misleading.
【单选题】过去五年，思想文化建设取得重大进展。加强党对意识形态工作的领导，党的( )全面推进，马克思主义在意识形态领域的指导地位更加鲜明，中国特色社会主义和中国梦深入人心，社会主义核心价值观和中华优秀传统文化广泛弘扬，群众性精神文明创建活动扎实开展。
A.
制度创新
B.
理论创新
C.
体制创新
D.
机制创新
【简答题】Directions: Decide whether the following statements are true or false.
【单选题】Directions: Decide which of the following best states the author's purpose of writing.
A.
To disclose the cause of the rise of English as a global language.
B.
To elucidate the need for international and intercultural understanding due to the global expansion of English.
C.
To exhibit people's uneasiness about the rise of English as a global language.
【单选题】Directions: Decide which of the following best states the author’s purpose of writing.
A.
To attempt a definition of happiness by setting some extremes to the idea and then working in toward the middle.
B.
To attack the dedicated insatiability for material possessions stirred by modern commercialism.
C.
To prove the validity of Thoreau’s notion about low levels and high levels of happiness.
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