Transcription MCQs with Answers

adminApril 6, 2024Last Updated: October 16, 2024

0 25 2 minutes read

Welcome to the Transcription MCQs with Answers. In this post, we have shared Transcription Online Test for different competitive exams. Find practice Transcription Practice Questions with answers in Biology Tests exams here. Each question offers a chance to enhance your knowledge regarding Transcription.

Transcription is the process in which genetic information encoded in DNA becomes copied into mRNA. This can be viewed as a prime step of gene expression, because cells can now synthesize all proteins that are involved in a wide range of functions.

It begins with the attachment of RNA polymerase to a specific region of DNA called the promoter. This unwinds and separates DNA. RNA polymerase travels down one of the DNA template strands. There it forms one of the strands of RNA by adding complementary RNA nucleotides to the chain. For example, wherever there is an adenine (A) in the DNA template, RNA polymerase adds uracil (U) to the mRNA.

When the RNA strand is synthesized, a few other things happen in the process: adding a 5′ cap, a poly-A tail, and splicing to remove the introns or non-coding regions. Mature mRNA leaves the nucleus and enters the cytoplasm where it will be translated into a protein. Transcription controls gene expression and what the cell does.

Transcription Online Quiz

By presenting 3 options to choose from, Transcription Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Transcription Questions and Answers and click over the correct answer.

Test Name: Transcription MCQ Quiz Practice
Type: Quiz Test
Total Questions: 40
Total Marks: 40
Time: 40 minutes

Note: Answer of the questions will change randomly each time you start the test. Practice each quiz test at least 3 times if you want to secure High Marks. Once you are finished, click the View Results button. If any answer looks wrong to you in Quizzes. simply click on question and comment below that question. so that we can update the answer in the quiz section.

Transcription

Please fill out the form before starting Quiz.

1 / 40

Which DNA strand serves as the template for transcription?

Antisense strand

Sense strand

Non-template strand

2 / 40

Which of the following is a characteristic of the TATA box in eukaryotic promoters?

It is located downstream of the transcription start site

It is recognized by the sigma factor

It is a sequence of DNA nucleotides

3 / 40

Which of the following is a function of the poly(tail in eukaryotic mRNA?

Initiating translation

Termination of transcription

Enhancing mRNA stability

4 / 40

Which of the following statements about enhancers and silencers is true?

Enhancers increase transcription, while silencers decrease transcription

Enhancers and silencers are both found within the gene coding region

Enhancers and silencers are recognized by RNA polymerase

5 / 40

The process of removing introns and joining exons in eukaryotic mRNA is called ____.

Polyadenylation

Splicing

Capping

6 / 40

The polyadenylation signal sequence in eukaryotic mRNA is recognized by ____.

Polyadenylation enzyme

Capping enzyme

Splicing enzyme

7 / 40

Which of the following statements about transcription initiation in prokaryotes is true?

It requires a sigma factor to recognize the promoter sequence

It occurs in the cytoplasm

It involves the removal of introns from pre-mRNA

8 / 40

Which of the following is NOT a type of RNA molecule?

tRNA

DNA

mRNA

9 / 40

Which of the following statements about the TATA box is true?

It is recognized by the sigma factor

It is located downstream of the transcription start site

It is a DNA sequence found in eukaryotic promoters

10 / 40

The enzyme responsible for transcription is called ____.

DNA polymerase

Helicase

RNA polymerase

11 / 40

Which of the following enzymes is NOT directly involved in transcription?

DNA polymerase

Helicase

RNA polymerase

12 / 40

The process of transcription is terminated by the formation of a ____.

Polyadenylation signal

Shine-Dalgarno sequence

Hairpin loop

13 / 40

In eukaryotes, which enzyme adds a 5' cap to mRNA transcripts?

Splicing enzyme

Capping enzyme

Polyadenylation enzyme

14 / 40

The process of transcription terminates when _____.

All nucleotides are transcribed

RNA polymerase reaches a terminator sequence

A stop codon is encountered

15 / 40

Which of the following is a post-transcriptional modification of mRNA in eukaryotes?

Promoter recognition

Enhancer binding

Polyadenylation

16 / 40

Transcription is the process of synthesizing ____.

RNA

DNA

Proteins

17 / 40

Which of the following is NOT a component of the RNA polymerase holoenzyme in prokaryotes?

Core enzyme

Helicase

Sigma factor

18 / 40

The process of transcription is initiated at the _____.

Terminator

Promoter

Enhancer

19 / 40

Which of the following is NOT a component of the transcription initiation complex?

Repressor protein

RNA polymerase

Promoter

20 / 40

The process of transcription occurs in the _____.

Cytoplasm

Ribosome

Nucleus

21 / 40

Which of the following is a function of the sigma factor in transcription?

Recognizing the promoter sequence

Adding nucleotides to the growing RNA chain

Unwinding the DNA double helix

22 / 40

In eukaryotes, the process of mRNA capping involves adding a _____.

Ribosome-binding site

Poly(tail

Methylated guanosine cap

23 / 40

The process of transcription is regulated by _____.

Transcription factors

Ribosomes

DNA polymerase

24 / 40

Which of the following is a component of RNA polymerase?

Core enzyme

Sigma factor

Helicase

25 / 40

The consensus sequence recognized by the sigma factor in prokaryotic promoters is _____.

TATAAT

ATGCTA

TTGACA

26 / 40

Which of the following is NOT involved in transcription elongation?

Sigma factor

RNA polymerase

Ribonucleotides

27 / 40

The process of transcription occurs in the _____.

Mitochondria

Nucleus

Cytoplasm

28 / 40

The promoter region of a gene is located _____.

Within the gene coding region

Upstream of the transcription start site

Downstream of the transcription start site

29 / 40

Which of the following statements about transcriptional activators is true?

They bind to enhancers to increase transcription

They inhibit the function of RNA polymerase

They bind to silencers to decrease transcription

30 / 40

In prokaryotes, which region of the mRNA transcript serves as a binding site for the ribosome?

TATA box

Shine-Dalgarno sequence

Polyadenylation signal

31 / 40

Which of the following is NOT involved in the termination of transcription in prokaryotes?

Hairpin loop

Rho factor

Polyadenylation signal

32 / 40

Which of the following is NOT a type of RNA processing in eukaryotes?

Polyadenylation

Capping

Splicing

33 / 40

In eukaryotes, which RNA polymerase is responsible for transcribing most protein-coding genes?

RNA polymerase III

RNA polymerase I

RNA polymerase II

34 / 40

The template for transcription is _____.

RNA

Protein

DNA

35 / 40

The region of DNA where RNA polymerase binds to initiate transcription is called the ____.

Silencer

Enhancer

Promoter

36 / 40

Which of the following is NOT a type of RNA polymerase found in eukaryotes?

RNA polymerase I

RNA polymerase IV

RNA polymerase III

37 / 40

The process of transcriptional regulation involves _____.

Controlling the rate of mRNA synthesis

Removing introns from pre-mRNA

Modifying the structure of mRNA

38 / 40

RNA polymerase adds nucleotides to the growing RNA chain in the _____.

5' to 3' direction

Random direction

3' to 5' direction

39 / 40

Which of the following statements about RNA processing is true?

It involves the addition of a 3' cap to mRNA

It includes capping, splicing, and polyadenylation

It occurs after translation

40 / 40

In eukaryotes, the enzyme responsible for removing introns from pre-mRNA is called ____.

Spliceosome

Ribonuclease

Helicase

Download Certificate of Quiz Transcription

On the end of Quiz, you can download the certificate of the quiz if you got more than 70% marks. Add a certificate to your job application or social profile (like LinkedIn) and get more job offers.

Download Transcription MCQs with Answers Free PDF

You can also download 100 Transcription Questions with Answers free PDF from the link provided below. To Download file in PDF click on the arrow sign at the top right corner.

If you are interested to enhance your knowledge regarding English, Physics, Chemistry, Computer, and Biology please click on the link of each category, you will be redirected to dedicated website for each category.

adminApril 6, 2024Last Updated: October 16, 2024

0 25 2 minutes read