Eukaryotic promoters contain:
A. TATA box 25 bp upstream of transcription start site
B. CAAT box 70 to 80 bp upstream of transcription start site
C. Both (a) and (b)
D. None of these
查看答案
A consensus sequence on DNA, called TATA box, is the site for attachment of:
A. RNA-dependent DNA polymerase
B. DNA-dependent RNA polymerase
C. DNA-dependent DNA polymerase
DNA topoisomerase II
Sigma and Rho factors are required for:
A. Replication
B. Transcription
C. Translation
D. Polymerization
Noncoding sequences in a gene are known as:
A. Cistron
B. Nonsense codons
C. Introns
D. Exons
His ___________of that singer is perfect.
A. imitate
B. imitates
C. imitation
D. imitating
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