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Gene Expression and Regulation MCQs with Answers

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

In cellular biology, the most basic functions that explain how genetic information is managed into protein and other required molecules are gene expression and regulation. Gene expression is defined as the process of using the information found in a gene to synthesize a gene product that is functional, commonly a protein. It usually involves two major processes: transcription, whereby DNA gets converted into messenger RNA (mRNA), and translation, whereby mRNA gets used to construct proteins.

Gene regulation is central to functional and plastic cellular properties. It should permit appropriate gene expression at the appropriate times and in appropriate amounts so that the cell can appropriately respond to environmental and developmental cues. Important mechanisms of gene regulation include transcriptional control, primarily through regulatory protein and enhancer action on initiation of transcription, and post-transcriptional control, involving mRNA splicing, stability, and degradation.

All of these involve epigenetic modifications, DNA methylation, and modification of the histone associated with the chromatin that change the chromatin structure and access to regulate gene expression without any change in the DNA sequence but with long-term changes in gene expression.

Gene expression and regulation are the most important aspects in the development of medical research, especially in the light of targeted therapies, like anticancer therapy and disorders with genetic association. With the manipulation of gene expressions, scientists can reveal the new treatments and much more about intricate biological processes.

Gene Expression and Regulation Online Quiz

By presenting 3 options to choose from, Gene Expression and Regulation 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 Gene Expression and Regulation Questions and Answers and click over the correct answer.

  • Test Name: Gene Expression and Regulation 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.

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Gene Expression and Regulation MCQs

Gene Expression and Regulation

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1 / 40

What is the role of mediator proteins in gene expression?

2 / 40

What is a feedback inhibition in gene regulation?

3 / 40

What is the primary function of the lac repressor?

4 / 40

What is the function of a repressor protein?

5 / 40

What is the role of a ribosome in gene expression?

6 / 40

What is the significance of the poly-A tail in mRNA?

7 / 40

What is the role of a promoter in gene expression?

8 / 40

What is the role of enhancers in eukaryotic gene regulation?

9 / 40

Which process removes introns from pre-mRNA?

10 / 40

What is epigenetic regulation?

11 / 40

What is alternative splicing?

12 / 40

What is a transcriptional repressor?

13 / 40

What is the primary mechanism by which gene expression is regulated in prokaryotes?

14 / 40

What is the TATA box?

15 / 40

How do transcription factors influence gene expression?

16 / 40

What is the function of a terminator in transcription?

17 / 40

What is RNA interference (RNAi)?

18 / 40

What is gene silencing?

19 / 40

What are microRNAs (miRNAs)?

20 / 40

What is the function of a transcription factor?

21 / 40

What is the function of the 5' cap in eukaryotic mRNA?

22 / 40

What is an operon model an example of?

23 / 40

What is the function of siRNA in gene regulation?

24 / 40

What is chromatin remodeling?

25 / 40

What is a regulatory gene?

26 / 40

What is an operon?

27 / 40

What is a silencer sequence?

28 / 40

Which molecule initiates transcription in eukaryotes?

29 / 40

What is a constitutive gene?

30 / 40

What is the role of histone acetylation in gene expression?

31 / 40

What is an enhancer?

32 / 40

What is the difference between positive and negative gene regulation?

33 / 40

What is an inducible operon?

34 / 40

What is the lac operon?

35 / 40

What is the role of ubiquitin in post-translational regulation?

36 / 40

What is the function of a core promoter in transcription?

37 / 40

What is a transcriptional activator?

38 / 40

What is the function of riboswitches in gene regulation?

39 / 40

What is post-transcriptional regulation?

40 / 40

What is a gene expression profile?

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