Transcription and Regulation – Section 1

21. Transcription begins

A. at the start codon
B. upstream from the start codon
C. downstream from the start codon
D. none of these

Correct Answer: B. upstream from the start codon

22. Transcription results in

A. an amino acid chain
B. messenger RNA
C. complementary DNA
D. Okazaki fragments

Correct Answer: B. messenger RNA

23. RNA polymerase holoenzyme initiates transcription which involves

A. recognition of the -10 sequence and -35 sequence
B. recognition of the -10 sequence only
C. recognition of the -35 sequence only
D. none of the above

Correct Answer: A. recognition of the -10 sequence and -35 sequence

24. The transcriptional regulatory proteins in eukaryotes which induce transcription usually have

A. at least two distinct domains of protein structure, a DNA binding domain and an activation domain
B. at least two distinct domains of protein structure and a DNA binding domain
C. at least one distinct domains of protein structure, a DNA binding domain and an activation domain
D. none of these

Correct Answer: A. at least two distinct domains of protein structure, a DNA binding domain and an activation domain

25. In prokaryotes, transcription is

A. terminated by the stop codon
B. terminated by a protein called rho
C. terminated by a poly A sequence
D. terminated by a start codon

Correct Answer: B. terminated by a protein called rho

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