【单选题】在基因工程操作中限制性核酸内切酶是不可缺少的工具。下列有关限制性核酸内切酶的叙述错误的是 [ ]
A.
一种限制性核酸内切酶只能识别一种特定的脱氧核苷酸序列
B.
限制性核酸内切酶的活性受温度和pH等因素的影响
【简答题】限制性核酸内切酶是一类由细菌产生的能专一识别双链DNA中的特定碱基序列、并水解该点磷酸二酯键的( )。
【单选题】Sociologists use 'power' to refer to the capacity of people to control or influence the actions of others. Sociologists study power to 【C1】______ not only who exercise it, but also why it's exercised ...
【简答题】Limit the use of private cars, improve public transport and encourage the use of bicycles to control traffic congestion(拥挤) during the 2008 Olympics, experts from foreign countries advised Beijing on ...
【判断题】Budgeting is the act of preparing a budget, while budgetary control is the use of budgets to control an organization’s activities
【单选题】An internal control system is the policies and procedures managers use to______.
B.
ensure reliable accounting
C.
promote efficient operations
D.
urge adherence to company policies
【单选题】The secretary can use and control ______ all sorts of the office software.
【单选题】Sociologists use 'power' to refer to the capacity of people to control or influence the actions of others. Sociologists study power to 【C1】______ not only who exercise it, but also why it's exercised ...
【单选题】In the control group, chimpanzees ______.
B.
learned to use lifting
C.
learned to use neither poking nor lifting
D.
stuck to poking or lilting