Free Practice Quiz Question List

5 Transcription and RNA Processing Online Quiz Questions

Use this free practice quiz with 20 questions to review 5 Transcription and RNA Processing, test your knowledge, and prepare for your next test or exam.

20 questions

True or false

1 point

True or false: In a typical eukaryotic protein-coding gene, the transcription start site is necessarily the first nucleotide of the protein-coding sequence.

A
True
B
False

Written response

1 point

What DNA region is where transcription machinery assembles and helps determine where transcription begins?

Choose one

1 point

A DNA template strand has the sequence 3′-TAC GGT-5′. What RNA sequence is synthesized from this template?

A
5′-AUG CCA-3′
B
5′-UAC GGU-3′
C
5′-ATG CCA-3′
D
5′-AUG GGU-3′

Fill in the blank

1 point

Complete the directions for transcription: RNA polymerase reads the template strand and synthesizes RNA .

Choose one

1 point

A transcribed region contains a 5′ UTR and a 3′ UTR. What is true of these regions in mature mRNA?

A
They are removed from pre-mRNA along with introns.
B
They are transcribed and retained in mature mRNA but are not translated.
C
They mark the DNA positions where transcription must terminate.
D
They are added to the RNA after it leaves the nucleus.

Written response

1 point

Which enzyme adds the stretch of adenine nucleotides that forms the poly(A) tail during pre-mRNA processing?

Fill in the blank

1 point

During typical pre-mRNA splicing, the spliceosome removes and joins neighboring exons.

True or false

1 point

True or false: In eukaryotic protein-coding genes, cleavage of the RNA and termination of transcription are always the same event.

A
True
B
False

Choose all

1 point

Which functions are supported by the 5′ cap on eukaryotic pre-mRNA? Select all correct choices.

A
It helps protect the RNA from breakdown.
B
It removes introns from the pre-mRNA.
C
It supports export of the RNA from the nucleus.
D
It supports recognition by translation machinery.

Choose all

1 point

Which statements describe transcription or mRNA processing in bacteria? Select all correct choices.

A
Transcription takes place in the cytoplasm.
B
Ribosomes can translate an RNA while it is being transcribed.
C
Bacterial cells use a nucleus to separate transcription from translation.
D
Bacterial mRNAs typically undergo less processing than eukaryotic pre-mRNAs.

Choose one

1 point

A eukaryotic gene undergoes alternative splicing. What outcome can this produce?

A
It causes RNA polymerase to use both DNA strands as templates.
B
It adds the poly(A) tail before transcription begins.
C
It joins different combinations of exons, allowing one gene to produce multiple mature RNA forms.
D
It converts untranslated regions into protein-coding sequences.

True or false

1 point

True or false: For many eukaryotic protein-coding genes, pre-mRNA processing can begin while transcription is still in progress.

A
True
B
False

Written response

1 point

Name one RNA class that functions as an RNA molecule rather than being translated into protein.

Open ended

1 point

Describe the three broad stages of transcription in order, including the main event that occurs during each stage.

Choose one

1 point

Which description best explains the role of the 5′ cap added to eukaryotic pre-mRNA?

A
It removes introns and joins neighboring exons.
B
It helps protect the RNA and supports export and translation machinery recognition.
C
It directs RNA polymerase to the DNA template strand.
D
It adds a long stretch of adenine by copying the DNA template.

Choose one

1 point

Which statement correctly distinguishes a promoter from a transcription start site (TSS)?

A
The promoter is the first DNA position copied into RNA, while the TSS is where translation begins.
B
The promoter is always part of the mature mRNA, while the TSS is removed during splicing.
C
The promoter is a region where transcription machinery assembles, while the TSS is the first DNA position copied into RNA.
D
The promoter is the start codon, while the TSS is the stop codon.

Written response

1 point

During transcription, what is the name of the DNA strand that RNA polymerase reads 3′ to 5′?

Choose one

1 point

How is the poly(A) tail of eukaryotic mRNA produced?

A
A stretch of adenine is added to the RNA during processing.
B
The tail is transcribed as a long run of adenines directly from the DNA template.
C
The tail is created when introns are joined together.
D
The tail is added to the 5′ end by the spliceosome.

Choose one

1 point

Which statement describes transcription and translation in bacteria?

A
Transcription occurs in the nucleus, and translation begins only after RNA export.
B
Transcription and translation are separated because bacterial mRNA must undergo extensive splicing.
C
Transcription occurs at the cell membrane, and translation occurs in the nucleus.
D
Transcription occurs in the cytoplasm and can take place while ribosomes translate the RNA.

Choose one

1 point

Which statement best describes the relationship between RNA cleavage and transcription termination in eukaryotic protein-coding genes?

A
Cleavage and termination are always the same event and occur at the TSS.
B
RNA cleavage and transcription termination are linked but are not always the same event.
C
Cleavage removes introns, whereas termination adds the 5′ cap.
D
Termination occurs only after mature mRNA has been exported to the cytoplasm.