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Questions and Answers
Which field of study focuses on how behaviors and environment can cause changes in gene function?
Which field of study focuses on how behaviors and environment can cause changes in gene function?
- Genetics
- Environmentology
- Behavioral genetics
- Epigenetics (correct)
Which component of the cell is responsible for packaging DNA into more compact structures?
Which component of the cell is responsible for packaging DNA into more compact structures?
- Epigenomes
- Histones
- DNA methylation
- Chromatin (correct)
Which of the following is a record of the chemical changes to DNA and RNA?
Which of the following is a record of the chemical changes to DNA and RNA?
- Genome
- Genotype
- Phenotype
- Epigenome (correct)
Which process involves the addition of a methyl group to DNA?
Which process involves the addition of a methyl group to DNA?
Which factor has been shown to affect the original organism, their offspring, and grandchildren?
Which factor has been shown to affect the original organism, their offspring, and grandchildren?
Which of the following is a characteristic of epigenetics?
Which of the following is a characteristic of epigenetics?
What is the function of chromatin in eukaryotic cells?
What is the function of chromatin in eukaryotic cells?
What are histones?
What are histones?
What does DNA methylation involve?
What does DNA methylation involve?
What is the relationship between epigenetic effects and future generations?
What is the relationship between epigenetic effects and future generations?
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Study Notes
Epigenetics Study Notes
Definition and Scope
- Epigenetics is the field of study that explores how behaviors and environment can cause changes in gene function.
Cellular Components
- Chromatin is responsible for packaging DNA into more compact structures in eukaryotic cells.
- Histones are proteins that DNA wraps around to form chromatin.
Epigenetic Modifications
- A record of chemical changes to DNA and RNA is known as epigenetic modifications.
- DNA methylation involves the addition of a methyl group to DNA.
Characteristics and Inheritance
- Epigenetics is characterized by changes in gene function that do not involve a change in the DNA sequence.
- Environmental factors have been shown to affect not only the original organism but also their offspring and grandchildren.
- Epigenetic effects can be passed on to future generations.
Key Concepts
- Epigenetic effects can be influenced by environmental factors, such as behaviors and lifestyle choices.
- Chromatin remodeling plays a crucial role in gene expression and epigenetic regulation.
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