题目内容

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

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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

He was _________doing the same thing every day.

A. tired of
B. tired in
C. tired from
D. tired to

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