Epigenetics MCQs with Answers

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

Epigenetics Online Quiz

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

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

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Epigenetics

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1 / 40

What is the role of epigenetics in immune responses?

To measure soil erosion

To analyze plant growth

Epigenetic changes can regulate immune cell development and function

2 / 40

What is the role of epigenetics in cancer?

To measure soil erosion

Aberrant epigenetic changes can lead to oncogene activation or tumor suppressor silencing

To analyze plant growth

3 / 40

What are epigenetic modifications?

A type of protein

A method to study fossils

Chemical modifications to DNA or histone proteins that regulate gene expression

4 / 40

What is the role of chromatin modifications in epigenetics?

A method to study fossils

Regulating accessibility of DNA for transcription

A type of protein

5 / 40

What is the role of non-coding RNAs in epigenetics?

To analyze plant growth

To measure soil erosion

Regulating gene expression by targeting specific genes or chromatin states

6 / 40

What is the difference between epigenetics and genetics?

Genetics focuses on DNA sequence; epigenetics focuses on gene expression regulation

Epigenetics is in animals

Genetics is in plants

7 / 40

What is epigenetics?

The study of plant growth

The study of DNA structure

The study of changes in gene expression that do not involve alterations in the DNA sequence

8 / 40

What is genomic imprinting?

A type of protein

A method to study fossils

Differential DNA methylation or histone modification based on parental origin

9 / 40

What is the epigenetic basis of cellular differentiation?

A type of protein

A method to study fossils

Epigenetic marks control which genes are expressed in different cell types

10 / 40

What is the role of epigenetics in behavioral traits?

Epigenetic mechanisms can influence behaviors through gene expression regulation

To promote pesticide use

To measure air quality

11 / 40

What is the role of epigenetics in stem cell biology?

To measure air quality

To promote pesticide use

Epigenetic modifications regulate pluripotency and differentiation

12 / 40

What is the mechanism of action of HDAC inhibitors in epigenetics?

A method of cloning

A process to study fossils

They inhibit histone deacetylases, leading to gene activation

13 / 40

What is the role of the epigenome in cellular memory?

A method to study fossils

A type of protein

It maintains and passes on epigenetic information during cell division

14 / 40

What is transgenerational epigenetic inheritance?

A type of virus

A type of plant structure

Transmission of epigenetic changes across multiple generations

15 / 40

What is an epigenetic inheritance?

Transmission of epigenetic marks from one generation to the next

A type of plant structure

A type of virus

16 / 40

What is the role of epigenetics in aging?

Changes in epigenetic marks can influence aging processes

To analyze plant growth

To measure soil erosion

17 / 40

What is histone acetylation?

A process to study fossils

Addition of acetyl groups to histone proteins, generally associated with gene activation

A method of cloning

18 / 40

What is the role of DNA hydroxymethylation in epigenetics?

An intermediate step in DNA demethylation processes

A method of cloning

A process to study fossils

19 / 40

What is the significance of epigenetic inheritance in evolution?

To measure soil erosion

Epigenetic changes can influence adaptation and speciation

To analyze plant growth

20 / 40

What is the role of epigenetics in gene-environment interactions?

Epigenetic modifications mediate how environmental factors influence gene expression

To analyze plant growth

To measure soil erosion

21 / 40

What is the impact of stress on epigenetic modifications?

Stress can alter DNA methylation and histone acetylation patterns

To promote pesticide use

To measure air quality

22 / 40

What is DNA methylation?

A type of plant structure

A type of virus

Addition of methyl groups to DNA, often leading to gene silencing

23 / 40

What is the significance of epigenetic therapy?

A type of protein

A method to study fossils

Using drugs to target and modify epigenetic marks for therapeutic purposes

24 / 40

What is chromatin remodeling?

A method to study fossils

A type of protein

Reorganization of chromatin structure to allow or restrict access to DNA

25 / 40

What is the difference between euchromatin and heterochromatin?

Euchromatin is in plants

Euchromatin is loosely packed and actively transcribed; heterochromatin is tightly packed and transcriptionally inactive

Heterochromatin is in animals

26 / 40

What is the role of environmental toxins in epigenetic modifications?

Exposure to toxins can induce changes in DNA methylation or histone modifications

A type of virus

A type of plant structure

27 / 40

What is the concept of epigenetic clock in aging research?

To analyze plant growth

To measure soil erosion

Predicting biological age based on DNA methylation patterns

28 / 40

What is the role of epigenetics in reproductive biology?

Epigenetic modifications regulate gametogenesis and embryonic development

To promote pesticide use

To measure air quality

29 / 40

What is the impact of maternal nutrition on epigenetic programming in offspring?

Maternal diet can affect epigenetic marks in offspring, influencing health outcomes

To measure soil erosion

To analyze plant growth

30 / 40

What is the role of small RNAs (e.g., microRNAs) in epigenetic regulation?

They can silence gene expression by targeting specific mRNAs

A type of plant structure

A type of virus

31 / 40

What is the role of epigenetics in neurological disorders?

To measure soil erosion

To analyze plant growth

Epigenetic changes can affect brain development and function

32 / 40

What is the role of epigenetics in development?

To analyze plant growth

Regulating gene expression patterns essential for differentiation and cell fate determination

To measure soil erosion

33 / 40

What is the role of DNA methylation in genomic imprinting?

Differential methylation marks control gene expression based on parental origin

A method of cloning

A process to study fossils

34 / 40

What is the function of epigenetic marks in gene regulation?

A method to study fossils

They control when and where genes are expressed without altering the DNA sequence

A type of protein

35 / 40

What is the role of epigenetics in metabolic diseases?

To measure soil erosion

To analyze plant growth

Epigenetic changes can affect metabolic pathways and disease risk

36 / 40

What is epigenetic reprogramming?

Resetting of epigenetic marks during early development or in induced pluripotent stem cells

A type of protein

A method to study fossils

37 / 40

What is the role of environmental factors in epigenetics?

To analyze plant growth

To measure soil erosion

Influencing epigenetic modifications that can alter gene expression

38 / 40

What is the role of DNA demethylation in epigenetics?

A process to study fossils

Removal of methyl groups from DNA, potentially leading to gene activation

A method of cloning

39 / 40

What is X chromosome inactivation in females?

A type of virus

A type of plant structure

Silencing of one X chromosome to equalize gene dosage between males and females

40 / 40

What is the impact of nutrition on epigenetic mechanisms?

Certain nutrients can influence DNA methylation and histone modifications

To promote pesticide use

To measure air quality

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admin3 weeks ago

0 3 1 minute read