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下图是利用转基因技术生产干扰素的简化流程。请分析回答：【图片】（1）过程①使用的（ ）酶能使特定部位的两个脱氧核苷酸之间的（ ）（化学键）断开。载体的黏性末端与目的基因DN段的黏性末端就可通过（ ）而结合。过程②需要用到酶（ ）。 (2)图中A的名称是（ ）。 (3)A上应有RNA聚合酶识别和结合的部位，以驱动干扰素基因转录，该部位称为（ ）。为直接检测干扰素基因是否转录，可从细胞中提取（ ）与用放射性同位素标记的（ ）作探针进行（ ）分子杂交。 （4）利用PCR扩增仪大量扩增目的基因的前提是目的基因的核苷酸序列要有一段是已知的，以便根据这一序列合成（ ），除了该物质和目的基因外，扩增仪中还需加入四种脱氧核苷酸和（ ）酶，并适时调整温度，才能使目的基因数量成指数式增长。
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【单选题】女性，30岁。皮肤瘀点、瘀斑、刷牙出血伴月经量增多1年来诊。化验：血小板36×109/L，同位素标记测定血小板寿命明显缩短，血小板相关抗体阳性，诊断为ITP。体检时下列哪项体征不应该出现（）
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中度贫血貌
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心率100次／min，心尖部SMⅡ
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下肢皮肤可见紫癜
【单选题】Mars fascinates scientists because of its similarity to Earth, and it fascinates the public because our myth of "Martians" is a vision of life beyond Earth. The Mars 62 continues with the launch of ...
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extremes
B.
extracts
C.
terminals
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radicals
【单选题】Mars fascinates scientists because of its similarity to Earth, and it fascinates the public because our myth of "Martians" is a vision of life beyond Earth. The Mars 62 continues with the launch of ...
A.
thus
B.
however
C.
so
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but
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A.
explore
B.
explode
C.
exploit
D.
deplore
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A.
delegation
B.
assignment
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undertaking
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mission
相关题目：
【单选题】女性，30岁。皮肤瘀点、瘀斑、刷牙出血伴月经量增多1年来诊。化验：血小板36×109/L，同位素标记测定血小板寿命明显缩短，血小板相关抗体阳性，诊断为ITP。体检时下列哪项体征不应该出现（）
A.
中度贫血貌
B.
心率100次／min，心尖部SMⅡ
C.
脾肋下3cm
D.
牙龈渗血
E.
下肢皮肤可见紫癜
【单选题】Mars fascinates scientists because of its similarity to Earth, and it fascinates the public because our myth of "Martians" is a vision of life beyond Earth. The Mars 62 continues with the launch of ...
A.
extremes
B.
extracts
C.
terminals
D.
radicals
【单选题】Mars fascinates scientists because of its similarity to Earth, and it fascinates the public because our myth of "Martians" is a vision of life beyond Earth. The Mars 62 continues with the launch of ...
A.
thus
B.
however
C.
so
D.
but
【单选题】Mars fascinates scientists because of its similarity to Earth, and it fascinates the public because our myth of "Martians" is a vision of life beyond Earth. The Mars 62 continues with the launch of ...
A.
explore
B.
explode
C.
exploit
D.
deplore
【单选题】Mars fascinates scientists because of its similarity to Earth, and it fascinates the public because our myth of "Martians" is a vision of life beyond Earth. The Mars 62 continues with the launch of ...
A.
delegation
B.
assignment
C.
undertaking
D.
mission
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