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Question 1

Match RNA polymerase I with the RNA(s) it transcribes.

Answer 1

most rRNA

Question 2

Match RNA Polymerase II with the RNA(s) it transcribes.

Answer 2

miRNA and mRNA

Question 3

Match RNA Polymerase III with the RNA(s) it transcribes.

Answer 3

tRNA and 5S rRNA

Question 4

Consider two genes that are next to each other on a chromosome, as arranged in the figure. Which of the following statements is true?

Answer 4

Gene A and gene B can be transcribed at different rates, producing different amounts of RNA within the same cell.

Question 5

RNA in cells differs from DNA in that ___________________.

Answer 5

it is single-stranded and can fold up into a variety of structures.

Question 6

Transcription in bacteria differs from transcription in a eukaryotic cell because __________________________.

Answer 6

RNA polymerase (along with its sigma subunit) can initiate transcription on its own.

Question 7

Which one of the following is the main reason that a typical eukaryotic gene is able to respond to a far greater variety of regulatory signals than a typical prokaryotic gene or operon?

Answer 7

The transcription of a eukaryotic gene can be influenced by proteins that bind far from the promoter.

Question 8

Transcription is similar to DNA replication in that ___________________.

Answer 8

nucleotide polymerization occurs only in the 5′-to-3′ direction.