Which of the following fragment is complementary with TAGCAT during DNA replication:()
A. TAGCAT
B. ATGCTA
C. ATCGTA
D. AUCGUA
E. AUGCUA
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Which substrate in the following can be catalyzed by DNA polymerase to form DNA molecule:()
A. dNTP
B. dNDP
C. dNMP
D. NTP
E. NDP
A double-stranded DNA fragment that is isotopically labeled with 15N, was cultured for n generations in the medium containing 14N. So the number of double-stranded DNA containing pure 14N is:()
A. 2^n+1
B. 2^n-1
C. 2^n-2
D. 2^n
E. 2^n+2
The technique that confirms semiconservative replication of DNA is:()
A. Sanger method
B. density gradient centrifugation
C. α-complementation
Dot blot
E. Western blot
Which of the following statements about the chromatin remodeling complex are correct:____
A. The chromatin remodeling complex consists of SWI/SNF, ISWI and SWR1 family.
B. The chromatin remodeling complex contains domains for recognition of modification site of histone.
C. SWR1 family can replace the H2A-H2B dimer of the nucleosome to H2A.Z-H2B dimer.
D. ISWI family can make DNA molecule slide on the core histone octamer, changing the arrangement of nucleosome and shortening the distance of neighboring DNA.
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