
epigenetics
Flashcard
•
Biology
•
9th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is epigenetics?
Back
Epigenetics is the study of changes in gene expression that do not involve alterations to the underlying DNA sequence. These changes can be influenced by environmental factors and can affect how genes are turned on or off.
2.
FLASHCARD QUESTION
Front
What are carcinogens?
Back
Carcinogens are substances that can lead to cancer by causing changes in cellular DNA.
3.
FLASHCARD QUESTION
Front
How can lifestyle choices impact gene expression?
Back
Lifestyle choices such as diet, exercise, and exposure to toxins can influence epigenetic modifications, which in turn can affect gene expression and overall health.
4.
FLASHCARD QUESTION
Front
What is the role of the environment in epigenetics?
Back
The environment can influence epigenetic changes, affecting how genes are expressed without changing the DNA sequence itself.
5.
FLASHCARD QUESTION
Front
What is a phenotype?
Back
A phenotype is the observable physical or biochemical characteristics of an organism, determined by both genetic makeup and environmental influences.
6.
FLASHCARD QUESTION
Front
How do monozygotic twins demonstrate the influence of epigenetics?
Back
Monozygotic twins share the same genetic material but can exhibit different phenotypes due to epigenetic modifications influenced by their environments.
7.
FLASHCARD QUESTION
Front
What is DNA methylation?
Back
DNA methylation is an epigenetic mechanism that involves the addition of a methyl group to DNA, often leading to gene silencing.
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