【单选题】After formation of replication fork
A.
Both the new strands are synthesized discontinuously
B.
One strand is synthesized continuously and the other discontinuously
C.
Both the new strands are synthesized continuously
D.
RNA primer is required only for the synthesis of one new strand
【简答题】已知PⅢ CPU主频为1G,则该CPU时钟周期为()ns。
【单选题】In the process of meiosis,DNA replication of each chromosome occurs,form ing a structure consisting of two sister chromatids attached to a single centromere.What is this structure?
A.
A duplicated chromosome
D.
A crossover chromosome
【单选题】已知某计算机 CPU 的外频为 133MHz ,其主板上倍频跳线在 6 的位置上,则该计算机的主频为()
【单选题】Which are features of nuclear division by mitosis? 1. forms cells of equal size to the parent cell 2. forms genetically identical cells 3. semi-conservative replication of DNA
【单选题】When dose the replication of the cirus peak in many viral infections?
A.
at or before the manifestation of clinical symptoms
B.
after the manifestation of clinical symptoms