To determine the number of replication sites in E.coliand whether replication is unidirectional or bidirectional, you examined the
results of two different experiments. Both experiments involved grTo determine the number of replication sites in E.coliand whether replication is unidirectional or bidirectional, you examined the
results of two different experiments. Both experiments involved gr
A. The
B. difference between the leading DNA strand and the lagging DNA strand
C. B．The difference between the replicated and
D. unreplicated portions of DNA
E. C．The
F. difference between the RNA primer and the newly synthesized DNA. The difference
G. between the replication fork and the newly synthesized DNA
H. D．None
I. of the above
查看答案
Which of the following is not required for DNA synthesis reactions（）
A. dCTPs
B. template DNA
C. DNA
D. polymerase
E. D．calcium
F. ions
伦敦国王学院的（）研究小组用X-射线衍射的方法研究核酸的结构，并取得了很多有意义的成果
A. Maurice Wilkins
B. Rosalind Franklin
C. David
D. Baltimore
E. D．James Watson
On the E. coli chromosome, oriC（）
A. encodes
B. DNA polymerase I
C. B．is
D. a binding site for histone proteins
E. C．is
F. the start site for replication
G. D．encodes
H. an RNA primer
In bacteria such as E. coli, replication of
the chromosome is（）In bacteria such as E. coli, replication of
the chromosome is（）
A. semidiscontinuous
B. and bi-directional
C. B．discontinuous
D. and unidirectional
E. C．continuous
F. and bi-directional
G. D．semidiscontinuous
H. and unidirectional
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