【单选题】One important difference between DNA replication in prokaryotes and eukaryotes is that
A.
prokaryotes do not use enzymes in the replication process.
B.
there is only one replication origin in prokaryotes.
C.
there are no Okazaki fragments in prokaryotes.
D.
replication is conservative, not semiconservative, in prokaryotes.
【简答题】行程中,游客患一般疾病,地陪导游员应如何处理?
【单选题】C 程序设计的三种基本结构是 _ _ _
【单选题】DNA replication is termed semiconservative because ( ).
A.
only the bases are replicated
B.
the bases are replicated in small fragments
C.
only half the DNA molecule is replicated at any one time
D.
each new molecule has one strand from the original molecule
E.
the two stands of the molecule are replicated
【判断题】在Python中,可调用对象主要包括函数(function)、lambda表达式、类(class)、类的方法(method)、实现了特殊方法__call__()的类的对象,这些对象作为内置函数callable()的参数会使得该函数返回True。
【判断题】在类A中将类B声明为一个友元类,那么在类A中就可以访问类B中的私有数据和方法。
【判断题】在Python中,可调用对象主要包括函数(function)、lambda表达式、类(class)、类的方法(method)、实现了特殊方法__call__()的类的对象,这些对象作为内置函数callable()的参数会使得该函数返回True。
【简答题】模考作文+初稿写作日记 请文件放到同一个文档,文档以号数+姓名命名。
【单选题】DNA replication is termed semiconservative because ( ).
A.
only the bases are replicated
B.
the bases are replicated in small fragments
C.
only half the DNA molecule is replicated at any one time
D.
each new molecule has one strand from the original molecule
E.
the two st r ands of the molecule are replicated