关于探针的叙述错误的是 -题库考试答案搜索网

关于探针的叙述错误的是

单选题

2022-04-02 11:46

A、要加以标记、带有示踪物，便于杂交后检测
B、应是单链，若为双链用前需先行变性为单链
C、具有高度特异性，只与靶核酸序列杂交
D、探针长度一般是十几个碱基到几千个碱基不等
E、作为探针的核苷酸序列要选取基因非编码序列

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正确答案

E

试题解析

作为探针的核普酸序列要选取基因编码序列，避免用内含子及其他非编码序列。

标签：川北医学院药学专升本分子生物学作业4

感兴趣题目

设t=2，b=3，c=4，d=5，则下面语句输出的是（）。 Print3>2*b Or a=c And bc Or c>d

翻译：With Average or With Particular Average（WA or WPA）（）

（）shall be liable for loss of and damage to the Vessel and／or goods arising or resulting from inaccuracies in stating the description，quantity，weight，measurement or contents.

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

The （） is used for hauling in or letting out the wires or ropes.

Vessels must be（）valid certificate of nationality or certificated of registry or license.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

Effects which are dutiable or subject to prohibitions or restrictions should be declared in （）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

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